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Finding the Third Proportional to 55,358.44 and 121,788.56

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Solution

The third proportional to 55,358.44 and 121,788.56 is: 267,934.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358.44 : 121,788.56 = 121,788.56 : x
  2. Step 2: Convert to fraction form
    55,358.44/121,788.56 = 121,788.56/x
  3. Step 3: Cross multiply
    55,358.44x = 121,788.56 × 121,788.56
  4. Step 4: Simplify right side
    55,358.44x = 14,832,453,955.82
  5. Step 5: Solve for x
    x = 14,832,453,955.82/55,358.44
  6. Step 6: Final answer
    x = 267,934.84

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.