Home / 277,928.20-417,086.70-120,269.80

Finding the Fourth Proportional to 277,928.20, 417,086.70 and 120,269.80

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Solution

The fourth proportional to 277,928.20, 417,086.70 and 120,269.80 is: 180,488.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,928.20 : 417,086.70 = 120,269.80 : x
  2. Step 2: Convert to fraction form
    277,928.20/417,086.70 = 120,269.80/x
  3. Step 3: Cross multiply
    277,928.20x = 417,086.70 × 120,269.80
  4. Step 4: Simplify right side
    277,928.20x = 50,162,933,991.66
  5. Step 5: Solve for x
    x = 50,162,933,991.66/277,928.20
  6. Step 6: Final answer
    x = 180,488.82

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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.