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Finding the Fourth Proportional to 224.85, 337.23 and 87.81

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Solution

The fourth proportional to 224.85, 337.23 and 87.81 is: 131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.85 : 337.23 = 87.81 : x
  2. Step 2: Convert to fraction form
    224.85/337.23 = 87.81/x
  3. Step 3: Cross multiply
    224.85x = 337.23 × 87.81
  4. Step 4: Simplify right side
    224.85x = 29,612.17
  5. Step 5: Solve for x
    x = 29,612.17/224.85
  6. Step 6: Final answer
    x = 131.70

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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.