Solve Multiplication: 15.1 × 10 Using Place Value

To solve this problem, we will execute the following simple steps:

• Step 1: Understand that multiplying a decimal by 10 involves moving its decimal point to the right by one place.
• Step 2: Apply this step to the given number.

In-depth walkthrough:
Step 1: We start with the number 15.1.
Step 2: Since we multiply by 10, we shift the decimal point one place to the right.
Step 3: This changes 15.1 into 151.

Therefore, the solution to the problem, as reflected in the provided answer choices, is the number $151$, which corresponds to choice 2.