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Finding the Third Proportional to 38,869 and 80,505

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Solution

The third proportional to 38,869 and 80,505 is: 166,740.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,869 : 80,505 = 80,505 : x
  2. Step 2: Convert to fraction form
    38,869/80,505 = 80,505/x
  3. Step 3: Cross multiply
    38,869x = 80,505 × 80,505
  4. Step 4: Simplify right side
    38,869x = 6,481,055,025
  5. Step 5: Solve for x
    x = 6,481,055,025/38,869
  6. Step 6: Final answer
    x = 166,740.98

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.