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Finding the Third Proportional to 57,220 and 120,872

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Solution

The third proportional to 57,220 and 120,872 is: 255,331.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,220 : 120,872 = 120,872 : x
  2. Step 2: Convert to fraction form
    57,220/120,872 = 120,872/x
  3. Step 3: Cross multiply
    57,220x = 120,872 × 120,872
  4. Step 4: Simplify right side
    57,220x = 14,610,040,384
  5. Step 5: Solve for x
    x = 14,610,040,384/57,220
  6. Step 6: Final answer
    x = 255,331.01

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.