Home / 262,990.20-394,226.10-129,761.40

Finding the Fourth Proportional to 262,990.20, 394,226.10 and 129,761.40

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Solution

The fourth proportional to 262,990.20, 394,226.10 and 129,761.40 is: 194,514.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,990.20 : 394,226.10 = 129,761.40 : x
  2. Step 2: Convert to fraction form
    262,990.20/394,226.10 = 129,761.40/x
  3. Step 3: Cross multiply
    262,990.20x = 394,226.10 × 129,761.40
  4. Step 4: Simplify right side
    262,990.20x = 51,155,330,652.54
  5. Step 5: Solve for x
    x = 51,155,330,652.54/262,990.20
  6. Step 6: Final answer
    x = 194,514.21

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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.