Home / 272,179.20-408,074.40-122,296.80

Finding the Fourth Proportional to 272,179.20, 408,074.40 and 122,296.80

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Solution

The fourth proportional to 272,179.20, 408,074.40 and 122,296.80 is: 183,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,179.20 : 408,074.40 = 122,296.80 : x
  2. Step 2: Convert to fraction form
    272,179.20/408,074.40 = 122,296.80/x
  3. Step 3: Cross multiply
    272,179.20x = 408,074.40 × 122,296.80
  4. Step 4: Simplify right side
    272,179.20x = 49,906,193,281.92
  5. Step 5: Solve for x
    x = 49,906,193,281.92/272,179.20
  6. Step 6: Final answer
    x = 183,357.85

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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.