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Finding the Fourth Proportional to 502.12, 751.83 and 472.15

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Solution

The fourth proportional to 502.12, 751.83 and 472.15 is: 706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.12 : 751.83 = 472.15 : x
  2. Step 2: Convert to fraction form
    502.12/751.83 = 472.15/x
  3. Step 3: Cross multiply
    502.12x = 751.83 × 472.15
  4. Step 4: Simplify right side
    502.12x = 354,976.53
  5. Step 5: Solve for x
    x = 354,976.53/502.12
  6. Step 6: Final answer
    x = 706.96

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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.