Home / 230.74-318.38-157.16

Finding the Fourth Proportional to 230.74, 318.38 and 157.16

Calculator

Solution

The fourth proportional to 230.74, 318.38 and 157.16 is: 216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.74 : 318.38 = 157.16 : x
  2. Step 2: Convert to fraction form
    230.74/318.38 = 157.16/x
  3. Step 3: Cross multiply
    230.74x = 318.38 × 157.16
  4. Step 4: Simplify right side
    230.74x = 50,036.60
  5. Step 5: Solve for x
    x = 50,036.60/230.74
  6. Step 6: Final answer
    x = 216.85

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.