Home / 276,685.91-381,821.39-150,813.76

Finding the Fourth Proportional to 276,685.91, 381,821.39 and 150,813.76

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Solution

The fourth proportional to 276,685.91, 381,821.39 and 150,813.76 is: 208,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,685.91 : 381,821.39 = 150,813.76 : x
  2. Step 2: Convert to fraction form
    276,685.91/381,821.39 = 150,813.76/x
  3. Step 3: Cross multiply
    276,685.91x = 381,821.39 × 150,813.76
  4. Step 4: Simplify right side
    276,685.91x = 57,583,919,474.33
  5. Step 5: Solve for x
    x = 57,583,919,474.33/276,685.91
  6. Step 6: Final answer
    x = 208,120.17

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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.