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Finding the Third Proportional to 267,945 and 426,517.50

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Solution

The third proportional to 267,945 and 426,517.50 is: 678,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,945 : 426,517.50 = 426,517.50 : x
  2. Step 2: Convert to fraction form
    267,945/426,517.50 = 426,517.50/x
  3. Step 3: Cross multiply
    267,945x = 426,517.50 × 426,517.50
  4. Step 4: Simplify right side
    267,945x = 181,917,177,806.25
  5. Step 5: Solve for x
    x = 181,917,177,806.25/267,945
  6. Step 6: Final answer
    x = 678,934.77

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.