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Finding the Fourth Proportional to 516,976.26, 775,520.02 and 217,487.30

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Solution

The fourth proportional to 516,976.26, 775,520.02 and 217,487.30 is: 326,254.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,976.26 : 775,520.02 = 217,487.30 : x
  2. Step 2: Convert to fraction form
    516,976.26/775,520.02 = 217,487.30/x
  3. Step 3: Cross multiply
    516,976.26x = 775,520.02 × 217,487.30
  4. Step 4: Simplify right side
    516,976.26x = 168,665,755,245.75
  5. Step 5: Solve for x
    x = 168,665,755,245.75/516,976.26
  6. Step 6: Final answer
    x = 326,254.35

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Double scale
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Similar ratio
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1.5x scale

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.