Home / 263,315.20-394,778.40-113,432.80

Finding the Fourth Proportional to 263,315.20, 394,778.40 and 113,432.80

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Solution

The fourth proportional to 263,315.20, 394,778.40 and 113,432.80 is: 170,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,315.20 : 394,778.40 = 113,432.80 : x
  2. Step 2: Convert to fraction form
    263,315.20/394,778.40 = 113,432.80/x
  3. Step 3: Cross multiply
    263,315.20x = 394,778.40 × 113,432.80
  4. Step 4: Simplify right side
    263,315.20x = 44,780,819,291.52
  5. Step 5: Solve for x
    x = 44,780,819,291.52/263,315.20
  6. Step 6: Final answer
    x = 170,065.45

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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.