Home / 276,311.68-381,309.44-155,453.04

Finding the Fourth Proportional to 276,311.68, 381,309.44 and 155,453.04

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Solution

The fourth proportional to 276,311.68, 381,309.44 and 155,453.04 is: 214,524.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,311.68 : 381,309.44 = 155,453.04 : x
  2. Step 2: Convert to fraction form
    276,311.68/381,309.44 = 155,453.04/x
  3. Step 3: Cross multiply
    276,311.68x = 381,309.44 × 155,453.04
  4. Step 4: Simplify right side
    276,311.68x = 59,275,711,628.70
  5. Step 5: Solve for x
    x = 59,275,711,628.70/276,311.68
  6. Step 6: Final answer
    x = 214,524.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.