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Finding the Third Proportional to 40,261 and 87,448

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Solution

The third proportional to 40,261 and 87,448 is: 189,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,261 : 87,448 = 87,448 : x
  2. Step 2: Convert to fraction form
    40,261/87,448 = 87,448/x
  3. Step 3: Cross multiply
    40,261x = 87,448 × 87,448
  4. Step 4: Simplify right side
    40,261x = 7,647,152,704
  5. Step 5: Solve for x
    x = 7,647,152,704/40,261
  6. Step 6: Final answer
    x = 189,939.46

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.