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Finding the Third Proportional to 267,618.94 and 391,380.19

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Solution

The third proportional to 267,618.94 and 391,380.19 is: 572,375.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,618.94 : 391,380.19 = 391,380.19 : x
  2. Step 2: Convert to fraction form
    267,618.94/391,380.19 = 391,380.19/x
  3. Step 3: Cross multiply
    267,618.94x = 391,380.19 × 391,380.19
  4. Step 4: Simplify right side
    267,618.94x = 153,178,451,167.54
  5. Step 5: Solve for x
    x = 153,178,451,167.54/267,618.94
  6. Step 6: Final answer
    x = 572,375.23

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.