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Finding the Third Proportional to 55,976 and 121,687

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Solution

The third proportional to 55,976 and 121,687 is: 264,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,976 : 121,687 = 121,687 : x
  2. Step 2: Convert to fraction form
    55,976/121,687 = 121,687/x
  3. Step 3: Cross multiply
    55,976x = 121,687 × 121,687
  4. Step 4: Simplify right side
    55,976x = 14,807,725,969
  5. Step 5: Solve for x
    x = 14,807,725,969/55,976
  6. Step 6: Final answer
    x = 264,537.05

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.