Home / 263,145.16-394,658.20-120,853.64

Finding the Fourth Proportional to 263,145.16, 394,658.20 and 120,853.64

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Solution

The fourth proportional to 263,145.16, 394,658.20 and 120,853.64 is: 181,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,145.16 : 394,658.20 = 120,853.64 : x
  2. Step 2: Convert to fraction form
    263,145.16/394,658.20 = 120,853.64/x
  3. Step 3: Cross multiply
    263,145.16x = 394,658.20 × 120,853.64
  4. Step 4: Simplify right side
    263,145.16x = 47,695,880,025.85
  5. Step 5: Solve for x
    x = 47,695,880,025.85/263,145.16
  6. Step 6: Final answer
    x = 181,253.12

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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.