Find the next number in the series:
$145,155,175,205,245,?$

Let's investigate the common differences between terms:
$$155-145=+10$$

$$175-155=+20$$

$$205-175=+30$$

$$245-205=+40$$

The difference increases uniformly by $10$ at each step. Following this rule:

$$\text{Next term}=245+50=295$$