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Finding the Third Proportional to 140,882 and 218,482

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Solution

The third proportional to 140,882 and 218,482 is: 338,825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,882 : 218,482 = 218,482 : x
  2. Step 2: Convert to fraction form
    140,882/218,482 = 218,482/x
  3. Step 3: Cross multiply
    140,882x = 218,482 × 218,482
  4. Step 4: Simplify right side
    140,882x = 47,734,384,324
  5. Step 5: Solve for x
    x = 47,734,384,324/140,882
  6. Step 6: Final answer
    x = 338,825.29

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.