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Finding the Third Proportional to 206,631 and 316,068

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Solution

The third proportional to 206,631 and 316,068 is: 483,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,631 : 316,068 = 316,068 : x
  2. Step 2: Convert to fraction form
    206,631/316,068 = 316,068/x
  3. Step 3: Cross multiply
    206,631x = 316,068 × 316,068
  4. Step 4: Simplify right side
    206,631x = 99,898,980,624
  5. Step 5: Solve for x
    x = 99,898,980,624/206,631
  6. Step 6: Final answer
    x = 483,465.60

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.