Home / 263,267.20-394,785.60-105,443.20

Finding the Fourth Proportional to 263,267.20, 394,785.60 and 105,443.20

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Solution

The fourth proportional to 263,267.20, 394,785.60 and 105,443.20 is: 158,118.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,267.20 : 394,785.60 = 105,443.20 : x
  2. Step 2: Convert to fraction form
    263,267.20/394,785.60 = 105,443.20/x
  3. Step 3: Cross multiply
    263,267.20x = 394,785.60 × 105,443.20
  4. Step 4: Simplify right side
    263,267.20x = 41,627,456,977.92
  5. Step 5: Solve for x
    x = 41,627,456,977.92/263,267.20
  6. Step 6: Final answer
    x = 158,118.66

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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.