Home / 319,796.20-479,751.90-132,826.60

Finding the Fourth Proportional to 319,796.20, 479,751.90 and 132,826.60

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Solution

The fourth proportional to 319,796.20, 479,751.90 and 132,826.60 is: 199,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,796.20 : 479,751.90 = 132,826.60 : x
  2. Step 2: Convert to fraction form
    319,796.20/479,751.90 = 132,826.60/x
  3. Step 3: Cross multiply
    319,796.20x = 479,751.90 × 132,826.60
  4. Step 4: Simplify right side
    319,796.20x = 63,723,813,720.54
  5. Step 5: Solve for x
    x = 63,723,813,720.54/319,796.20
  6. Step 6: Final answer
    x = 199,263.82

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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.