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Finding the Fourth Proportional to 502.92, 754.56 and 178.56

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Solution

The fourth proportional to 502.92, 754.56 and 178.56 is: 267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.92 : 754.56 = 178.56 : x
  2. Step 2: Convert to fraction form
    502.92/754.56 = 178.56/x
  3. Step 3: Cross multiply
    502.92x = 754.56 × 178.56
  4. Step 4: Simplify right side
    502.92x = 134,734.23
  5. Step 5: Solve for x
    x = 134,734.23/502.92
  6. Step 6: Final answer
    x = 267.90

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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.