Home / 263,115.28-394,607.22-103,223.80

Finding the Fourth Proportional to 263,115.28, 394,607.22 and 103,223.80

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Solution

The fourth proportional to 263,115.28, 394,607.22 and 103,223.80 is: 154,809.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,115.28 : 394,607.22 = 103,223.80 : x
  2. Step 2: Convert to fraction form
    263,115.28/394,607.22 = 103,223.80/x
  3. Step 3: Cross multiply
    263,115.28x = 394,607.22 × 103,223.80
  4. Step 4: Simplify right side
    263,115.28x = 40,732,856,755.84
  5. Step 5: Solve for x
    x = 40,732,856,755.84/263,115.28
  6. Step 6: Final answer
    x = 154,809.92

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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.