Home / 276,660.20-414,933.60-76,930.40

Finding the Fourth Proportional to 276,660.20, 414,933.60 and 76,930.40

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Solution

The fourth proportional to 276,660.20, 414,933.60 and 76,930.40 is: 115,379.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,660.20 : 414,933.60 = 76,930.40 : x
  2. Step 2: Convert to fraction form
    276,660.20/414,933.60 = 76,930.40/x
  3. Step 3: Cross multiply
    276,660.20x = 414,933.60 × 76,930.40
  4. Step 4: Simplify right side
    276,660.20x = 31,921,007,821.44
  5. Step 5: Solve for x
    x = 31,921,007,821.44/276,660.20
  6. Step 6: Final answer
    x = 115,379.83

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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.