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Finding the Fourth Proportional to 502.34, 753.56 and 177.80

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Solution

The fourth proportional to 502.34, 753.56 and 177.80 is: 266.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.34 : 753.56 = 177.80 : x
  2. Step 2: Convert to fraction form
    502.34/753.56 = 177.80/x
  3. Step 3: Cross multiply
    502.34x = 753.56 × 177.80
  4. Step 4: Simplify right side
    502.34x = 133,982.08
  5. Step 5: Solve for x
    x = 133,982.08/502.34
  6. Step 6: Final answer
    x = 266.72

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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.