Option - I
Instead of selecting from marks card you can easily get it. First select the state from dimension pane and profit from measures pane using Ctrl key. Now go to Show me
and select filled map. See the screen shot
Once you select it'll look like
Option - II
Drag tableau generated longitude and latitude in columns and rows shelf. Then drag state on detail and profit on color in marks card.
Once done you'll get this
Hope this help.