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Finding the Fourth Proportional to 242.38, 362.76 and 150.76

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Solution

The fourth proportional to 242.38, 362.76 and 150.76 is: 225.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.38 : 362.76 = 150.76 : x
  2. Step 2: Convert to fraction form
    242.38/362.76 = 150.76/x
  3. Step 3: Cross multiply
    242.38x = 362.76 × 150.76
  4. Step 4: Simplify right side
    242.38x = 54,689.70
  5. Step 5: Solve for x
    x = 54,689.70/242.38
  6. Step 6: Final answer
    x = 225.64

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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.