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Finding the Third Proportional to 166,087 and 257,882

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Solution

The third proportional to 166,087 and 257,882 is: 400,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,087 : 257,882 = 257,882 : x
  2. Step 2: Convert to fraction form
    166,087/257,882 = 257,882/x
  3. Step 3: Cross multiply
    166,087x = 257,882 × 257,882
  4. Step 4: Simplify right side
    166,087x = 66,503,125,924
  5. Step 5: Solve for x
    x = 66,503,125,924/166,087
  6. Step 6: Final answer
    x = 400,411.39

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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.