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Finding the Third Proportional to 133,779 and 207,045

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Solution

The third proportional to 133,779 and 207,045 is: 320,436.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,779 : 207,045 = 207,045 : x
  2. Step 2: Convert to fraction form
    133,779/207,045 = 207,045/x
  3. Step 3: Cross multiply
    133,779x = 207,045 × 207,045
  4. Step 4: Simplify right side
    133,779x = 42,867,632,025
  5. Step 5: Solve for x
    x = 42,867,632,025/133,779
  6. Step 6: Final answer
    x = 320,436.18

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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.