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Finding the Fourth Proportional to 502.11, 753.36 and 491.16

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Solution

The fourth proportional to 502.11, 753.36 and 491.16 is: 736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.11 : 753.36 = 491.16 : x
  2. Step 2: Convert to fraction form
    502.11/753.36 = 491.16/x
  3. Step 3: Cross multiply
    502.11x = 753.36 × 491.16
  4. Step 4: Simplify right side
    502.11x = 370,020.30
  5. Step 5: Solve for x
    x = 370,020.30/502.11
  6. Step 6: Final answer
    x = 736.93

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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.