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Finding the Third Proportional to 97,878 and 155,565

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Solution

The third proportional to 97,878 and 155,565 is: 247,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,878 : 155,565 = 155,565 : x
  2. Step 2: Convert to fraction form
    97,878/155,565 = 155,565/x
  3. Step 3: Cross multiply
    97,878x = 155,565 × 155,565
  4. Step 4: Simplify right side
    97,878x = 24,200,469,225
  5. Step 5: Solve for x
    x = 24,200,469,225/97,878
  6. Step 6: Final answer
    x = 247,251.37

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.