Home / 384,228.15-576,287.55-131,520.30

Finding the Fourth Proportional to 384,228.15, 576,287.55 and 131,520.30

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Solution

The fourth proportional to 384,228.15, 576,287.55 and 131,520.30 is: 197,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,228.15 : 576,287.55 = 131,520.30 : x
  2. Step 2: Convert to fraction form
    384,228.15/576,287.55 = 131,520.30/x
  3. Step 3: Cross multiply
    384,228.15x = 576,287.55 × 131,520.30
  4. Step 4: Simplify right side
    384,228.15x = 75,793,511,462.27
  5. Step 5: Solve for x
    x = 75,793,511,462.27/384,228.15
  6. Step 6: Final answer
    x = 197,261.73

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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.