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Finding the Third Proportional to 182,218 and 399,530

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Solution

The third proportional to 182,218 and 399,530 is: 876,006.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,218 : 399,530 = 399,530 : x
  2. Step 2: Convert to fraction form
    182,218/399,530 = 399,530/x
  3. Step 3: Cross multiply
    182,218x = 399,530 × 399,530
  4. Step 4: Simplify right side
    182,218x = 159,624,220,900
  5. Step 5: Solve for x
    x = 159,624,220,900/182,218
  6. Step 6: Final answer
    x = 876,006.88

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.