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Finding the Fourth Proportional to 397.61, 596.18 and 224.20

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Solution

The fourth proportional to 397.61, 596.18 and 224.20 is: 336.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.61 : 596.18 = 224.20 : x
  2. Step 2: Convert to fraction form
    397.61/596.18 = 224.20/x
  3. Step 3: Cross multiply
    397.61x = 596.18 × 224.20
  4. Step 4: Simplify right side
    397.61x = 133,663.56
  5. Step 5: Solve for x
    x = 133,663.56/397.61
  6. Step 6: Final answer
    x = 336.17

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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.