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Finding the Third Proportional to 166,678 and 264,779

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Solution

The third proportional to 166,678 and 264,779 is: 420,618.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,678 : 264,779 = 264,779 : x
  2. Step 2: Convert to fraction form
    166,678/264,779 = 264,779/x
  3. Step 3: Cross multiply
    166,678x = 264,779 × 264,779
  4. Step 4: Simplify right side
    166,678x = 70,107,918,841
  5. Step 5: Solve for x
    x = 70,107,918,841/166,678
  6. Step 6: Final answer
    x = 420,618.91

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.