Home / 263,103.80-394,650.23-105,289.88

Finding the Fourth Proportional to 263,103.80, 394,650.23 and 105,289.88

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Solution

The fourth proportional to 263,103.80, 394,650.23 and 105,289.88 is: 157,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,103.80 : 394,650.23 = 105,289.88 : x
  2. Step 2: Convert to fraction form
    263,103.80/394,650.23 = 105,289.88/x
  3. Step 3: Cross multiply
    263,103.80x = 394,650.23 × 105,289.88
  4. Step 4: Simplify right side
    263,103.80x = 41,552,672,858.97
  5. Step 5: Solve for x
    x = 41,552,672,858.97/263,103.80
  6. Step 6: Final answer
    x = 157,932.62

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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.