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Finding the Fourth Proportional to 288.12, 432.17 and 224.76

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Solution

The fourth proportional to 288.12, 432.17 and 224.76 is: 337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.12 : 432.17 = 224.76 : x
  2. Step 2: Convert to fraction form
    288.12/432.17 = 224.76/x
  3. Step 3: Cross multiply
    288.12x = 432.17 × 224.76
  4. Step 4: Simplify right side
    288.12x = 97,134.53
  5. Step 5: Solve for x
    x = 97,134.53/288.12
  6. Step 6: Final answer
    x = 337.13

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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.