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Finding the Fourth Proportional to 232.72, 349.24 and 118.72

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Solution

The fourth proportional to 232.72, 349.24 and 118.72 is: 178.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.72 : 349.24 = 118.72 : x
  2. Step 2: Convert to fraction form
    232.72/349.24 = 118.72/x
  3. Step 3: Cross multiply
    232.72x = 349.24 × 118.72
  4. Step 4: Simplify right side
    232.72x = 41,461.77
  5. Step 5: Solve for x
    x = 41,461.77/232.72
  6. Step 6: Final answer
    x = 178.16

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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.