we know that
In the Arithmetic Sequence, the formula is
an=a1+(n-1)*d
where
an = the term that you want to find
a1 = first term in the list of ordered numbers
n = the term position
d = common difference of any pair of consecutive numbers
in this problem we have
a1=34
d=15
so
for n=200
a200=34+(200-1)*15-------> a200=3019
the answer is
3019
