Home / 276,664.20-414,939.60-76,934.40

Finding the Fourth Proportional to 276,664.20, 414,939.60 and 76,934.40

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Solution

The fourth proportional to 276,664.20, 414,939.60 and 76,934.40 is: 115,385.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,664.20 : 414,939.60 = 76,934.40 : x
  2. Step 2: Convert to fraction form
    276,664.20/414,939.60 = 76,934.40/x
  3. Step 3: Cross multiply
    276,664.20x = 414,939.60 × 76,934.40
  4. Step 4: Simplify right side
    276,664.20x = 31,923,129,162.24
  5. Step 5: Solve for x
    x = 31,923,129,162.24/276,664.20
  6. Step 6: Final answer
    x = 115,385.83

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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.