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Finding the Third Proportional to 267,015 and 413,307

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Solution

The third proportional to 267,015 and 413,307 is: 639,749.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,015 : 413,307 = 413,307 : x
  2. Step 2: Convert to fraction form
    267,015/413,307 = 413,307/x
  3. Step 3: Cross multiply
    267,015x = 413,307 × 413,307
  4. Step 4: Simplify right side
    267,015x = 170,822,676,249
  5. Step 5: Solve for x
    x = 170,822,676,249/267,015
  6. Step 6: Final answer
    x = 639,749.36

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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.