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Finding the Third Proportional to 55,750 and 117,980

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Solution

The third proportional to 55,750 and 117,980 is: 249,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,750 : 117,980 = 117,980 : x
  2. Step 2: Convert to fraction form
    55,750/117,980 = 117,980/x
  3. Step 3: Cross multiply
    55,750x = 117,980 × 117,980
  4. Step 4: Simplify right side
    55,750x = 13,919,280,400
  5. Step 5: Solve for x
    x = 13,919,280,400/55,750
  6. Step 6: Final answer
    x = 249,673.19

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.