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Finding the Third Proportional to 133,446 and 290,218

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Solution

The third proportional to 133,446 and 290,218 is: 631,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,446 : 290,218 = 290,218 : x
  2. Step 2: Convert to fraction form
    133,446/290,218 = 290,218/x
  3. Step 3: Cross multiply
    133,446x = 290,218 × 290,218
  4. Step 4: Simplify right side
    133,446x = 84,226,487,524
  5. Step 5: Solve for x
    x = 84,226,487,524/133,446
  6. Step 6: Final answer
    x = 631,165.32

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.