Home / 263,531.18-394,800.78-130,255.40

Finding the Fourth Proportional to 263,531.18, 394,800.78 and 130,255.40

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Solution

The fourth proportional to 263,531.18, 394,800.78 and 130,255.40 is: 195,137.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,531.18 : 394,800.78 = 130,255.40 : x
  2. Step 2: Convert to fraction form
    263,531.18/394,800.78 = 130,255.40/x
  3. Step 3: Cross multiply
    263,531.18x = 394,800.78 × 130,255.40
  4. Step 4: Simplify right side
    263,531.18x = 51,424,933,519.21
  5. Step 5: Solve for x
    x = 51,424,933,519.21/263,531.18
  6. Step 6: Final answer
    x = 195,137.95

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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.