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Finding the Third Proportional to 141,374 and 218,620

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Solution

The third proportional to 141,374 and 218,620 is: 338,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,374 : 218,620 = 218,620 : x
  2. Step 2: Convert to fraction form
    141,374/218,620 = 218,620/x
  3. Step 3: Cross multiply
    141,374x = 218,620 × 218,620
  4. Step 4: Simplify right side
    141,374x = 47,794,704,400
  5. Step 5: Solve for x
    x = 47,794,704,400/141,374
  6. Step 6: Final answer
    x = 338,072.80

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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.