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Finding the Third Proportional to 18,737 and 40,225

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Solution

The third proportional to 18,737 and 40,225 is: 86,355.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737 : 40,225 = 40,225 : x
  2. Step 2: Convert to fraction form
    18,737/40,225 = 40,225/x
  3. Step 3: Cross multiply
    18,737x = 40,225 × 40,225
  4. Step 4: Simplify right side
    18,737x = 1,618,050,625
  5. Step 5: Solve for x
    x = 1,618,050,625/18,737
  6. Step 6: Final answer
    x = 86,355.91

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.