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Finding the Third Proportional to 87,471 and 191,754

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Solution

The third proportional to 87,471 and 191,754 is: 420,363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,471 : 191,754 = 191,754 : x
  2. Step 2: Convert to fraction form
    87,471/191,754 = 191,754/x
  3. Step 3: Cross multiply
    87,471x = 191,754 × 191,754
  4. Step 4: Simplify right side
    87,471x = 36,769,596,516
  5. Step 5: Solve for x
    x = 36,769,596,516/87,471
  6. Step 6: Final answer
    x = 420,363.28

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.