He splits the cost 3+1=<<3+1=4>>4 ways
100 pounds of burgers at $3 per pound makes 100*3=$<<100*3=300>>300
In addition to $80 for condiments and propane the total cost was 300+80=$<<300+80=380>>380
That means each of them paid 380/4=$<<380/4=95>>95
Then adding in the cost of alcohol, John spent 200+95=$<<200+95=295>>295
#### 295