Home / 276,730.80-381,775.20-204,306.96

Finding the Fourth Proportional to 276,730.80, 381,775.20 and 204,306.96

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Solution

The fourth proportional to 276,730.80, 381,775.20 and 204,306.96 is: 281,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,730.80 : 381,775.20 = 204,306.96 : x
  2. Step 2: Convert to fraction form
    276,730.80/381,775.20 = 204,306.96/x
  3. Step 3: Cross multiply
    276,730.80x = 381,775.20 × 204,306.96
  4. Step 4: Simplify right side
    276,730.80x = 77,999,330,515.39
  5. Step 5: Solve for x
    x = 77,999,330,515.39/276,730.80
  6. Step 6: Final answer
    x = 281,859.95

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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.