Home / 263,244.06-394,865.77-85,750.78

Finding the Fourth Proportional to 263,244.06, 394,865.77 and 85,750.78

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Solution

The fourth proportional to 263,244.06, 394,865.77 and 85,750.78 is: 128,626.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,244.06 : 394,865.77 = 85,750.78 : x
  2. Step 2: Convert to fraction form
    263,244.06/394,865.77 = 85,750.78/x
  3. Step 3: Cross multiply
    263,244.06x = 394,865.77 × 85,750.78
  4. Step 4: Simplify right side
    263,244.06x = 33,860,047,772.80
  5. Step 5: Solve for x
    x = 33,860,047,772.80/263,244.06
  6. Step 6: Final answer
    x = 128,626.07

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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.