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Finding the Third Proportional to 87,213 and 187,736

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Solution

The third proportional to 87,213 and 187,736 is: 404,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,213 : 187,736 = 187,736 : x
  2. Step 2: Convert to fraction form
    87,213/187,736 = 187,736/x
  3. Step 3: Cross multiply
    87,213x = 187,736 × 187,736
  4. Step 4: Simplify right side
    87,213x = 35,244,805,696
  5. Step 5: Solve for x
    x = 35,244,805,696/87,213
  6. Step 6: Final answer
    x = 404,123.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.