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Finding the Third Proportional to 39,267 and 87,245

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Solution

The third proportional to 39,267 and 87,245 is: 193,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,267 : 87,245 = 87,245 : x
  2. Step 2: Convert to fraction form
    39,267/87,245 = 87,245/x
  3. Step 3: Cross multiply
    39,267x = 87,245 × 87,245
  4. Step 4: Simplify right side
    39,267x = 7,611,690,025
  5. Step 5: Solve for x
    x = 7,611,690,025/39,267
  6. Step 6: Final answer
    x = 193,844.45

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.