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Finding the Third Proportional to 186,904 and 279,580

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Solution

The third proportional to 186,904 and 279,580 is: 418,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,904 : 279,580 = 279,580 : x
  2. Step 2: Convert to fraction form
    186,904/279,580 = 279,580/x
  3. Step 3: Cross multiply
    186,904x = 279,580 × 279,580
  4. Step 4: Simplify right side
    186,904x = 78,164,976,400
  5. Step 5: Solve for x
    x = 78,164,976,400/186,904
  6. Step 6: Final answer
    x = 418,209.22

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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.