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Finding the Third Proportional to 87,646 and 191,877

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Solution

The third proportional to 87,646 and 191,877 is: 420,062.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,646 : 191,877 = 191,877 : x
  2. Step 2: Convert to fraction form
    87,646/191,877 = 191,877/x
  3. Step 3: Cross multiply
    87,646x = 191,877 × 191,877
  4. Step 4: Simplify right side
    87,646x = 36,816,783,129
  5. Step 5: Solve for x
    x = 36,816,783,129/87,646
  6. Step 6: Final answer
    x = 420,062.33

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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.