We can do equal height easily by using Divi theme. If you are looking for this question answer,

How to equalize column heights in Divi?

please watch this video in the content. This video shows everything.

Row Settings:

  1. First go to Row Settings
  2. Design Tab
  3. Sizing
  4. Equalize column heights → YES.

Column Settings

  1. Set Background color from the Column Background color.

Just simple! You have done it: Equalize Column Heights by using Divi. If not clear, please watch this video.