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Finding the Fourth Proportional to 242.67, 334.87 and 132.15

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Solution

The fourth proportional to 242.67, 334.87 and 132.15 is: 182.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.67 : 334.87 = 132.15 : x
  2. Step 2: Convert to fraction form
    242.67/334.87 = 132.15/x
  3. Step 3: Cross multiply
    242.67x = 334.87 × 132.15
  4. Step 4: Simplify right side
    242.67x = 44,252.56
  5. Step 5: Solve for x
    x = 44,252.56/242.67
  6. Step 6: Final answer
    x = 182.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.