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Finding the Third Proportional to 268,692 and 408,384

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Solution

The third proportional to 268,692 and 408,384 is: 620,701.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,692 : 408,384 = 408,384 : x
  2. Step 2: Convert to fraction form
    268,692/408,384 = 408,384/x
  3. Step 3: Cross multiply
    268,692x = 408,384 × 408,384
  4. Step 4: Simplify right side
    268,692x = 166,777,491,456
  5. Step 5: Solve for x
    x = 166,777,491,456/268,692
  6. Step 6: Final answer
    x = 620,701.37

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.