Home / 276,393.70-381,631.15-271,979.70

Finding the Fourth Proportional to 276,393.70, 381,631.15 and 271,979.70

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Solution

The fourth proportional to 276,393.70, 381,631.15 and 271,979.70 is: 375,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,393.70 : 381,631.15 = 271,979.70 : x
  2. Step 2: Convert to fraction form
    276,393.70/381,631.15 = 271,979.70/x
  3. Step 3: Cross multiply
    276,393.70x = 381,631.15 × 271,979.70
  4. Step 4: Simplify right side
    276,393.70x = 103,795,925,687.66
  5. Step 5: Solve for x
    x = 103,795,925,687.66/276,393.70
  6. Step 6: Final answer
    x = 375,536.51

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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.