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Finding the Third Proportional to 83,940 and 180,306

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Solution

The third proportional to 83,940 and 180,306 is: 387,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,940 : 180,306 = 180,306 : x
  2. Step 2: Convert to fraction form
    83,940/180,306 = 180,306/x
  3. Step 3: Cross multiply
    83,940x = 180,306 × 180,306
  4. Step 4: Simplify right side
    83,940x = 32,510,253,636
  5. Step 5: Solve for x
    x = 32,510,253,636/83,940
  6. Step 6: Final answer
    x = 387,303.47

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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.