The arithmetic sequence is
.
In the sequence the first term is
and common difference is
.
(Apply nth term of an arithmetic sequence formula:
)
(Substitute 50 for n,
, and d = 4)

Find the sum of the 50 terms by using the sum of a finite arithmetic sequence formula: 
(Substitute 50 for n,
and 190 for
)
The sum of the arithmetic sequence is 4600.