Home / 262,868.80-394,562.40-129,899.20

Finding the Fourth Proportional to 262,868.80, 394,562.40 and 129,899.20

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Solution

The fourth proportional to 262,868.80, 394,562.40 and 129,899.20 is: 194,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,868.80 : 394,562.40 = 129,899.20 : x
  2. Step 2: Convert to fraction form
    262,868.80/394,562.40 = 129,899.20/x
  3. Step 3: Cross multiply
    262,868.80x = 394,562.40 × 129,899.20
  4. Step 4: Simplify right side
    262,868.80x = 51,253,340,110.08
  5. Step 5: Solve for x
    x = 51,253,340,110.08/262,868.80
  6. Step 6: Final answer
    x = 194,976.89

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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.