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Finding the Third Proportional to 103,808 and 155,170

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Solution

The third proportional to 103,808 and 155,170 is: 231,944.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,808 : 155,170 = 155,170 : x
  2. Step 2: Convert to fraction form
    103,808/155,170 = 155,170/x
  3. Step 3: Cross multiply
    103,808x = 155,170 × 155,170
  4. Step 4: Simplify right side
    103,808x = 24,077,728,900
  5. Step 5: Solve for x
    x = 24,077,728,900/103,808
  6. Step 6: Final answer
    x = 231,944.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.