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Finding the Third Proportional to 166,042 and 259,431

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Solution

The third proportional to 166,042 and 259,431 is: 405,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,042 : 259,431 = 259,431 : x
  2. Step 2: Convert to fraction form
    166,042/259,431 = 259,431/x
  3. Step 3: Cross multiply
    166,042x = 259,431 × 259,431
  4. Step 4: Simplify right side
    166,042x = 67,304,443,761
  5. Step 5: Solve for x
    x = 67,304,443,761/166,042
  6. Step 6: Final answer
    x = 405,345.90

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.