Home / 223,408.20-335,351.04-90,375.42

Finding the Fourth Proportional to 223,408.20, 335,351.04 and 90,375.42

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Solution

The fourth proportional to 223,408.20, 335,351.04 and 90,375.42 is: 135,659.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,408.20 : 335,351.04 = 90,375.42 : x
  2. Step 2: Convert to fraction form
    223,408.20/335,351.04 = 90,375.42/x
  3. Step 3: Cross multiply
    223,408.20x = 335,351.04 × 90,375.42
  4. Step 4: Simplify right side
    223,408.20x = 30,307,491,087.44
  5. Step 5: Solve for x
    x = 30,307,491,087.44/223,408.20
  6. Step 6: Final answer
    x = 135,659.71

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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.