Home / 215,734.20-323,601.30-121,255.80

Finding the Fourth Proportional to 215,734.20, 323,601.30 and 121,255.80

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Solution

The fourth proportional to 215,734.20, 323,601.30 and 121,255.80 is: 181,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,734.20 : 323,601.30 = 121,255.80 : x
  2. Step 2: Convert to fraction form
    215,734.20/323,601.30 = 121,255.80/x
  3. Step 3: Cross multiply
    215,734.20x = 323,601.30 × 121,255.80
  4. Step 4: Simplify right side
    215,734.20x = 39,238,534,512.54
  5. Step 5: Solve for x
    x = 39,238,534,512.54/215,734.20
  6. Step 6: Final answer
    x = 181,883.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.