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Finding the Third Proportional to 231,489 and 347,847.75

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Solution

The third proportional to 231,489 and 347,847.75 is: 522,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,489 : 347,847.75 = 347,847.75 : x
  2. Step 2: Convert to fraction form
    231,489/347,847.75 = 347,847.75/x
  3. Step 3: Cross multiply
    231,489x = 347,847.75 × 347,847.75
  4. Step 4: Simplify right side
    231,489x = 120,998,057,180.06
  5. Step 5: Solve for x
    x = 120,998,057,180.06/231,489
  6. Step 6: Final answer
    x = 522,694.63

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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.