Home / 262,919.20-394,378.80-113,231.20

Finding the Fourth Proportional to 262,919.20, 394,378.80 and 113,231.20

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Solution

The fourth proportional to 262,919.20, 394,378.80 and 113,231.20 is: 169,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,919.20 : 394,378.80 = 113,231.20 : x
  2. Step 2: Convert to fraction form
    262,919.20/394,378.80 = 113,231.20/x
  3. Step 3: Cross multiply
    262,919.20x = 394,378.80 × 113,231.20
  4. Step 4: Simplify right side
    262,919.20x = 44,655,984,778.56
  5. Step 5: Solve for x
    x = 44,655,984,778.56/262,919.20
  6. Step 6: Final answer
    x = 169,846.80

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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.