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Finding the Third Proportional to 83,800 and 180,719

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Solution

The third proportional to 83,800 and 180,719 is: 389,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,800 : 180,719 = 180,719 : x
  2. Step 2: Convert to fraction form
    83,800/180,719 = 180,719/x
  3. Step 3: Cross multiply
    83,800x = 180,719 × 180,719
  4. Step 4: Simplify right side
    83,800x = 32,659,356,961
  5. Step 5: Solve for x
    x = 32,659,356,961/83,800
  6. Step 6: Final answer
    x = 389,729.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.