Home / 215,949.78-298,010.52-120,456.44

Finding the Fourth Proportional to 215,949.78, 298,010.52 and 120,456.44

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Solution

The fourth proportional to 215,949.78, 298,010.52 and 120,456.44 is: 166,229.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,949.78 : 298,010.52 = 120,456.44 : x
  2. Step 2: Convert to fraction form
    215,949.78/298,010.52 = 120,456.44/x
  3. Step 3: Cross multiply
    215,949.78x = 298,010.52 × 120,456.44
  4. Step 4: Simplify right side
    215,949.78x = 35,897,286,321.75
  5. Step 5: Solve for x
    x = 35,897,286,321.75/215,949.78
  6. Step 6: Final answer
    x = 166,229.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.