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Finding the Third Proportional to 182,606 and 398,431

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Solution

The third proportional to 182,606 and 398,431 is: 869,343.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,606 : 398,431 = 398,431 : x
  2. Step 2: Convert to fraction form
    182,606/398,431 = 398,431/x
  3. Step 3: Cross multiply
    182,606x = 398,431 × 398,431
  4. Step 4: Simplify right side
    182,606x = 158,747,261,761
  5. Step 5: Solve for x
    x = 158,747,261,761/182,606
  6. Step 6: Final answer
    x = 869,343.08

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.