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Finding the Third Proportional to 206,497 and 290,797

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Solution

The third proportional to 206,497 and 290,797 is: 409,511.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,497 : 290,797 = 290,797 : x
  2. Step 2: Convert to fraction form
    206,497/290,797 = 290,797/x
  3. Step 3: Cross multiply
    206,497x = 290,797 × 290,797
  4. Step 4: Simplify right side
    206,497x = 84,562,895,209
  5. Step 5: Solve for x
    x = 84,562,895,209/206,497
  6. Step 6: Final answer
    x = 409,511.50

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.