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Finding the Third Proportional to 269,422 and 418,353

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Solution

The third proportional to 269,422 and 418,353 is: 649,610.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,422 : 418,353 = 418,353 : x
  2. Step 2: Convert to fraction form
    269,422/418,353 = 418,353/x
  3. Step 3: Cross multiply
    269,422x = 418,353 × 418,353
  4. Step 4: Simplify right side
    269,422x = 175,019,232,609
  5. Step 5: Solve for x
    x = 175,019,232,609/269,422
  6. Step 6: Final answer
    x = 649,610.03

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.