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Finding the Fourth Proportional to 242.65, 334.85 and 132.12

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Solution

The fourth proportional to 242.65, 334.85 and 132.12 is: 182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.65 : 334.85 = 132.12 : x
  2. Step 2: Convert to fraction form
    242.65/334.85 = 132.12/x
  3. Step 3: Cross multiply
    242.65x = 334.85 × 132.12
  4. Step 4: Simplify right side
    242.65x = 44,241.90
  5. Step 5: Solve for x
    x = 44,241.90/242.65
  6. Step 6: Final answer
    x = 182.33

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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.