Home / 262,840.36-394,177.82-85,306.36

Finding the Fourth Proportional to 262,840.36, 394,177.82 and 85,306.36

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Solution

The fourth proportional to 262,840.36, 394,177.82 and 85,306.36 is: 127,932.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,840.36 : 394,177.82 = 85,306.36 : x
  2. Step 2: Convert to fraction form
    262,840.36/394,177.82 = 85,306.36/x
  3. Step 3: Cross multiply
    262,840.36x = 394,177.82 × 85,306.36
  4. Step 4: Simplify right side
    262,840.36x = 33,625,875,016.94
  5. Step 5: Solve for x
    x = 33,625,875,016.94/262,840.36
  6. Step 6: Final answer
    x = 127,932.69

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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.