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Finding the Third Proportional to 87,540 and 190,918

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Solution

The third proportional to 87,540 and 190,918 is: 416,377.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540 : 190,918 = 190,918 : x
  2. Step 2: Convert to fraction form
    87,540/190,918 = 190,918/x
  3. Step 3: Cross multiply
    87,540x = 190,918 × 190,918
  4. Step 4: Simplify right side
    87,540x = 36,449,682,724
  5. Step 5: Solve for x
    x = 36,449,682,724/87,540
  6. Step 6: Final answer
    x = 416,377.46

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.