Home / 262,721.21-394,044.89-85,229.82

Finding the Fourth Proportional to 262,721.21, 394,044.89 and 85,229.82

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Solution

The fourth proportional to 262,721.21, 394,044.89 and 85,229.82 is: 127,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,721.21 : 394,044.89 = 85,229.82 : x
  2. Step 2: Convert to fraction form
    262,721.21/394,044.89 = 85,229.82/x
  3. Step 3: Cross multiply
    262,721.21x = 394,044.89 × 85,229.82
  4. Step 4: Simplify right side
    262,721.21x = 33,584,374,620.47
  5. Step 5: Solve for x
    x = 33,584,374,620.47/262,721.21
  6. Step 6: Final answer
    x = 127,832.75

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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.