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Finding the Fourth Proportional to 276,806.88, 381,993.49 and 149,482.47

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Solution

The fourth proportional to 276,806.88, 381,993.49 and 149,482.47 is: 206,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,806.88 : 381,993.49 = 149,482.47 : x
  2. Step 2: Convert to fraction form
    276,806.88/381,993.49 = 149,482.47/x
  3. Step 3: Cross multiply
    276,806.88x = 381,993.49 × 149,482.47
  4. Step 4: Simplify right side
    276,806.88x = 57,101,330,595.97
  5. Step 5: Solve for x
    x = 57,101,330,595.97/276,806.88
  6. Step 6: Final answer
    x = 206,285.81

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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.