Home / 262,728.11-394,147.52-85,221.27

Finding the Fourth Proportional to 262,728.11, 394,147.52 and 85,221.27

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Solution

The fourth proportional to 262,728.11, 394,147.52 and 85,221.27 is: 127,849.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,728.11 : 394,147.52 = 85,221.27 : x
  2. Step 2: Convert to fraction form
    262,728.11/394,147.52 = 85,221.27/x
  3. Step 3: Cross multiply
    262,728.11x = 394,147.52 × 85,221.27
  4. Step 4: Simplify right side
    262,728.11x = 33,589,751,795.64
  5. Step 5: Solve for x
    x = 33,589,751,795.64/262,728.11
  6. Step 6: Final answer
    x = 127,849.86

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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.