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Finding the Third Proportional to 166,108.50 and 257,694.75

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Solution

The third proportional to 166,108.50 and 257,694.75 is: 399,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,108.50 : 257,694.75 = 257,694.75 : x
  2. Step 2: Convert to fraction form
    166,108.50/257,694.75 = 257,694.75/x
  3. Step 3: Cross multiply
    166,108.50x = 257,694.75 × 257,694.75
  4. Step 4: Simplify right side
    166,108.50x = 66,406,584,177.56
  5. Step 5: Solve for x
    x = 66,406,584,177.56/166,108.50
  6. Step 6: Final answer
    x = 399,778.36

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.