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Finding the Fourth Proportional to 250.16, 375.31 and 113.17

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Solution

The fourth proportional to 250.16, 375.31 and 113.17 is: 169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.16 : 375.31 = 113.17 : x
  2. Step 2: Convert to fraction form
    250.16/375.31 = 113.17/x
  3. Step 3: Cross multiply
    250.16x = 375.31 × 113.17
  4. Step 4: Simplify right side
    250.16x = 42,471.96
  5. Step 5: Solve for x
    x = 42,471.96/250.16
  6. Step 6: Final answer
    x = 169.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.