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Finding the Third Proportional to 186,769 and 280,344

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Solution

The third proportional to 186,769 and 280,344 is: 420,801.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,769 : 280,344 = 280,344 : x
  2. Step 2: Convert to fraction form
    186,769/280,344 = 280,344/x
  3. Step 3: Cross multiply
    186,769x = 280,344 × 280,344
  4. Step 4: Simplify right side
    186,769x = 78,592,758,336
  5. Step 5: Solve for x
    x = 78,592,758,336/186,769
  6. Step 6: Final answer
    x = 420,801.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.