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Finding the Third Proportional to 126,589.50 and 270,128

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Solution

The third proportional to 126,589.50 and 270,128 is: 576,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,589.50 : 270,128 = 270,128 : x
  2. Step 2: Convert to fraction form
    126,589.50/270,128 = 270,128/x
  3. Step 3: Cross multiply
    126,589.50x = 270,128 × 270,128
  4. Step 4: Simplify right side
    126,589.50x = 72,969,136,384
  5. Step 5: Solve for x
    x = 72,969,136,384/126,589.50
  6. Step 6: Final answer
    x = 576,423.29

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.