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Finding the Third Proportional to 87,718 and 192,130

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Solution

The third proportional to 87,718 and 192,130 is: 420,825.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,718 : 192,130 = 192,130 : x
  2. Step 2: Convert to fraction form
    87,718/192,130 = 192,130/x
  3. Step 3: Cross multiply
    87,718x = 192,130 × 192,130
  4. Step 4: Simplify right side
    87,718x = 36,913,936,900
  5. Step 5: Solve for x
    x = 36,913,936,900/87,718
  6. Step 6: Final answer
    x = 420,825.11

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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.