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Finding the Third Proportional to 381,380.25 and 517,956.75

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Solution

The third proportional to 381,380.25 and 517,956.75 is: 703,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,380.25 : 517,956.75 = 517,956.75 : x
  2. Step 2: Convert to fraction form
    381,380.25/517,956.75 = 517,956.75/x
  3. Step 3: Cross multiply
    381,380.25x = 517,956.75 × 517,956.75
  4. Step 4: Simplify right side
    381,380.25x = 268,279,194,870.56
  5. Step 5: Solve for x
    x = 268,279,194,870.56/381,380.25
  6. Step 6: Final answer
    x = 703,442.81

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.