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Finding the Third Proportional to 133,077 and 291,917

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Solution

The third proportional to 133,077 and 291,917 is: 640,347.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,077 : 291,917 = 291,917 : x
  2. Step 2: Convert to fraction form
    133,077/291,917 = 291,917/x
  3. Step 3: Cross multiply
    133,077x = 291,917 × 291,917
  4. Step 4: Simplify right side
    133,077x = 85,215,534,889
  5. Step 5: Solve for x
    x = 85,215,534,889/133,077
  6. Step 6: Final answer
    x = 640,347.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.