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Finding the Third Proportional to 166,630 and 258,087

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Solution

The third proportional to 166,630 and 258,087 is: 399,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,630 : 258,087 = 258,087 : x
  2. Step 2: Convert to fraction form
    166,630/258,087 = 258,087/x
  3. Step 3: Cross multiply
    166,630x = 258,087 × 258,087
  4. Step 4: Simplify right side
    166,630x = 66,608,899,569
  5. Step 5: Solve for x
    x = 66,608,899,569/166,630
  6. Step 6: Final answer
    x = 399,741.34

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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.