http://www.divithemeexamples.com/equalize-column-heights-in-divi/

http://sundari-webdesign.com/divi-equal-module-height-instead-of-equal-column-height/

Added a CSS class to the pricing module using flexbox to achieve equal heights.

.my-equal-height{
display: -webkit-flex;
display: -ms-flexbox;
display: flex;

-webkit-flex-wrap: wrap;
-ms-flex-wrap: wrap;
flex-wrap: wrap;
}

Thanks everyone, especially Verdi who provided the tip and Riley for the offer of help!

Sent from my Samsung Galaxy smartphone.