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Finding the Fourth Proportional to 276,652.47, 381,956.97 and 225,786.72

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Solution

The fourth proportional to 276,652.47, 381,956.97 and 225,786.72 is: 311,729.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,652.47 : 381,956.97 = 225,786.72 : x
  2. Step 2: Convert to fraction form
    276,652.47/381,956.97 = 225,786.72/x
  3. Step 3: Cross multiply
    276,652.47x = 381,956.97 × 225,786.72
  4. Step 4: Simplify right side
    276,652.47x = 86,240,811,437.44
  5. Step 5: Solve for x
    x = 86,240,811,437.44/276,652.47
  6. Step 6: Final answer
    x = 311,729.77

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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.