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Finding the Third Proportional to 204,009 and 306,191.25

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Solution

The third proportional to 204,009 and 306,191.25 is: 459,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,009 : 306,191.25 = 306,191.25 : x
  2. Step 2: Convert to fraction form
    204,009/306,191.25 = 306,191.25/x
  3. Step 3: Cross multiply
    204,009x = 306,191.25 × 306,191.25
  4. Step 4: Simplify right side
    204,009x = 93,753,081,576.56
  5. Step 5: Solve for x
    x = 93,753,081,576.56/204,009
  6. Step 6: Final answer
    x = 459,553.65

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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.