Its county seat is San Antonio, the second-most populous city in Texas and the seventh-largest city in the United States. Bexar County is included in the San Antonio-New Braunfels, TX metropolitan statistical area. Bexar county includes Government Canyon state natural area in northwestern part of the county.
If the screen width is 7 feet and the projector's throw ratio is 2.0 - 2.4:1 (because projectors have zoom lenses, they also have a range of throw ratios) then you can place your projector anywhere from 14 to 16.8 feet away from the screen.
The projector you want has a throw ratio of 1.8-2.2:1. So, 7.5 feet * 1.8 equals 13.5 feet, and 7.5 feet * 2.2 equals 16.5 feet, as is indicated in the example below. Next, make sure your room is set up so that you can place a projector in that area (either using a ceiling mount, a stand or a coffee table). Step 5.