Home / 262,977.20-394,206.60-129,748.40

Finding the Fourth Proportional to 262,977.20, 394,206.60 and 129,748.40

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Solution

The fourth proportional to 262,977.20, 394,206.60 and 129,748.40 is: 194,494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,977.20 : 394,206.60 = 129,748.40 : x
  2. Step 2: Convert to fraction form
    262,977.20/394,206.60 = 129,748.40/x
  3. Step 3: Cross multiply
    262,977.20x = 394,206.60 × 129,748.40
  4. Step 4: Simplify right side
    262,977.20x = 51,147,675,619.44
  5. Step 5: Solve for x
    x = 51,147,675,619.44/262,977.20
  6. Step 6: Final answer
    x = 194,494.72

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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.