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Finding the Fourth Proportional to 502.14, 754.92 and 395.22

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Solution

The fourth proportional to 502.14, 754.92 and 395.22 is: 594.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.14 : 754.92 = 395.22 : x
  2. Step 2: Convert to fraction form
    502.14/754.92 = 395.22/x
  3. Step 3: Cross multiply
    502.14x = 754.92 × 395.22
  4. Step 4: Simplify right side
    502.14x = 298,359.48
  5. Step 5: Solve for x
    x = 298,359.48/502.14
  6. Step 6: Final answer
    x = 594.18

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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.