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Finding the Fourth Proportional to 502.34, 753.57 and 285.93

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Solution

The fourth proportional to 502.34, 753.57 and 285.93 is: 428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.34 : 753.57 = 285.93 : x
  2. Step 2: Convert to fraction form
    502.34/753.57 = 285.93/x
  3. Step 3: Cross multiply
    502.34x = 753.57 × 285.93
  4. Step 4: Simplify right side
    502.34x = 215,468.27
  5. Step 5: Solve for x
    x = 215,468.27/502.34
  6. Step 6: Final answer
    x = 428.93

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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.