Home / 263,131.20-394,243.20-122,601.60

Finding the Fourth Proportional to 263,131.20, 394,243.20 and 122,601.60

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Solution

The fourth proportional to 263,131.20, 394,243.20 and 122,601.60 is: 183,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,131.20 : 394,243.20 = 122,601.60 : x
  2. Step 2: Convert to fraction form
    263,131.20/394,243.20 = 122,601.60/x
  3. Step 3: Cross multiply
    263,131.20x = 394,243.20 × 122,601.60
  4. Step 4: Simplify right side
    263,131.20x = 48,334,847,109.12
  5. Step 5: Solve for x
    x = 48,334,847,109.12/263,131.20
  6. Step 6: Final answer
    x = 183,691.05

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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.