Adding post loop over columns

Hello

I am wanting to display post loops over 3 columns. I have found a source that looks like it will do the trick but I’m not too sure how to integrate the php with my custom post type. I need it to display in 3 different div columns because the site will be responsive.

This is my index code:

<?php get_header(); ?>
<div id="content-wrap" style="margin-top:100px;">
	<div class="container">
    	<div class="row">
				<?php

                global $query_string;
                query_posts($query_string . "post_type=projects&post_status=publish&posts_per_page=50");
                if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

                <div class="fourcol">
                    <div class="project">
                        <a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
                            <?php the_post_thumbnail(); ?>
                            <div class="project-name">
                                <h2><?php the_title(); ?></h2>
                            </div>
                        </a>
                    </div>
                </div>
                <div class="fourcol">
                    <div class="project">
                        <a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
                            <?php the_post_thumbnail(); ?>
                            <div class="project-name">
                                <h2><?php the_title(); ?></h2>
                            </div>
                        </a>
                    </div>
                </div>
                <div class="fourcol">
                    <div class="project">
                        <a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
                            <?php the_post_thumbnail(); ?>
                            <div class="project-name">
                                <h2><?php the_title(); ?></h2>
                            </div>
                        </a>
                    </div>
                </div>
                <?php endwhile;
                endif; ?>

        </div>
	</div><!-- End of container -->
</div> <!-- End of profile -->
<?php get_footer(); ?>

This is the block of code on the internet I found I think might do the trick:

<?php if (have_posts()) : while(have_posts()) : $i++; if(($i % 2) == 0) : $wp_query->next_post(); else : the_post(); ?>

<div id="left-column">
<h1><?php the_permalink(); ?></h1>
<?php the_content(); ?>
</div>

<?php endif; endwhile; else: ?>
<div>Alternate content</div>
<?php endif; ?>

<?php $i = 0; rewind_posts(); ?>

<?php if (have_posts()) : while(have_posts()) : $i++; if(($i % 2) !== 0) : $wp_query->next_post(); else : the_post(); ?>

<div id="right-column">
<h1><?php the_permalink(); ?></h1>
<?php the_content(); ?>
</div>

<?php endif; endwhile; else: ?>
<div>Alternate content</div>
<?php endif; ?>

How can I integrate the two for my custom post type.

Thanks heaps in advance.