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Finding the Third Proportional to 205,766 and 309,195

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Solution

The third proportional to 205,766 and 309,195 is: 464,612.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,766 : 309,195 = 309,195 : x
  2. Step 2: Convert to fraction form
    205,766/309,195 = 309,195/x
  3. Step 3: Cross multiply
    205,766x = 309,195 × 309,195
  4. Step 4: Simplify right side
    205,766x = 95,601,548,025
  5. Step 5: Solve for x
    x = 95,601,548,025/205,766
  6. Step 6: Final answer
    x = 464,612.95

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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.