Home / 276,568.20-381,671.34-155,713.92

Finding the Fourth Proportional to 276,568.20, 381,671.34 and 155,713.92

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Solution

The fourth proportional to 276,568.20, 381,671.34 and 155,713.92 is: 214,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,568.20 : 381,671.34 = 155,713.92 : x
  2. Step 2: Convert to fraction form
    276,568.20/381,671.34 = 155,713.92/x
  3. Step 3: Cross multiply
    276,568.20x = 381,671.34 × 155,713.92
  4. Step 4: Simplify right side
    276,568.20x = 59,431,540,503.05
  5. Step 5: Solve for x
    x = 59,431,540,503.05/276,568.20
  6. Step 6: Final answer
    x = 214,889.28

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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.