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Finding the Fourth Proportional to 224.98, 337.19 and 138.04

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Solution

The fourth proportional to 224.98, 337.19 and 138.04 is: 206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.98 : 337.19 = 138.04 : x
  2. Step 2: Convert to fraction form
    224.98/337.19 = 138.04/x
  3. Step 3: Cross multiply
    224.98x = 337.19 × 138.04
  4. Step 4: Simplify right side
    224.98x = 46,545.71
  5. Step 5: Solve for x
    x = 46,545.71/224.98
  6. Step 6: Final answer
    x = 206.89

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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.