Home / 276,278.12-381,318.26-179,601.78

Finding the Fourth Proportional to 276,278.12, 381,318.26 and 179,601.78

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Solution

The fourth proportional to 276,278.12, 381,318.26 and 179,601.78 is: 247,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,278.12 : 381,318.26 = 179,601.78 : x
  2. Step 2: Convert to fraction form
    276,278.12/381,318.26 = 179,601.78/x
  3. Step 3: Cross multiply
    276,278.12x = 381,318.26 × 179,601.78
  4. Step 4: Simplify right side
    276,278.12x = 68,485,437,344.49
  5. Step 5: Solve for x
    x = 68,485,437,344.49/276,278.12
  6. Step 6: Final answer
    x = 247,885.86

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1.5x scale

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.