Change Products Images Dimensions in Catalog List Magento 2.1.6

I need to change the size of the images shown in the LIST format, but leaving the GRID format like this.

The first image shows how the page is currently in LIST mode.

The second image shows how I would like the products to be displayed

And the third image shows how the GRID is, I don’t want to edit it!

First Image

Second Image

Third Image

I would appreciate your help! Thanks!