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Finding the Third Proportional to 135,878 and 195,716

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Solution

The third proportional to 135,878 and 195,716 is: 281,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,878 : 195,716 = 195,716 : x
  2. Step 2: Convert to fraction form
    135,878/195,716 = 195,716/x
  3. Step 3: Cross multiply
    135,878x = 195,716 × 195,716
  4. Step 4: Simplify right side
    135,878x = 38,304,752,656
  5. Step 5: Solve for x
    x = 38,304,752,656/135,878
  6. Step 6: Final answer
    x = 281,905.48

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.