Home / 263,104.20-394,559.10-129,940.20

Finding the Fourth Proportional to 263,104.20, 394,559.10 and 129,940.20

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Solution

The fourth proportional to 263,104.20, 394,559.10 and 129,940.20 is: 194,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,104.20 : 394,559.10 = 129,940.20 : x
  2. Step 2: Convert to fraction form
    263,104.20/394,559.10 = 129,940.20/x
  3. Step 3: Cross multiply
    263,104.20x = 394,559.10 × 129,940.20
  4. Step 4: Simplify right side
    263,104.20x = 51,269,088,365.82
  5. Step 5: Solve for x
    x = 51,269,088,365.82/263,104.20
  6. Step 6: Final answer
    x = 194,862.30

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1.5x scale

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.