Home / 215,298.12-322,933.88-80,335.92

Finding the Fourth Proportional to 215,298.12, 322,933.88 and 80,335.92

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Solution

The fourth proportional to 215,298.12, 322,933.88 and 80,335.92 is: 120,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,298.12 : 322,933.88 = 80,335.92 : x
  2. Step 2: Convert to fraction form
    215,298.12/322,933.88 = 80,335.92/x
  3. Step 3: Cross multiply
    215,298.12x = 322,933.88 × 80,335.92
  4. Step 4: Simplify right side
    215,298.12x = 25,943,190,348.97
  5. Step 5: Solve for x
    x = 25,943,190,348.97/215,298.12
  6. Step 6: Final answer
    x = 120,498.92

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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.