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Finding the Fourth Proportional to 224.92, 337.40 and 80.61

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Solution

The fourth proportional to 224.92, 337.40 and 80.61 is: 120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.92 : 337.40 = 80.61 : x
  2. Step 2: Convert to fraction form
    224.92/337.40 = 80.61/x
  3. Step 3: Cross multiply
    224.92x = 337.40 × 80.61
  4. Step 4: Simplify right side
    224.92x = 27,195.72
  5. Step 5: Solve for x
    x = 27,195.72/224.92
  6. Step 6: Final answer
    x = 120.91

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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.