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Finding the Third Proportional to 45,390 and 99,741

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Solution

The third proportional to 45,390 and 99,741 is: 219,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,390 : 99,741 = 99,741 : x
  2. Step 2: Convert to fraction form
    45,390/99,741 = 99,741/x
  3. Step 3: Cross multiply
    45,390x = 99,741 × 99,741
  4. Step 4: Simplify right side
    45,390x = 9,948,267,081
  5. Step 5: Solve for x
    x = 9,948,267,081/45,390
  6. Step 6: Final answer
    x = 219,173.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.