Home / 276,811.20-381,999.44-149,486.79

Finding the Fourth Proportional to 276,811.20, 381,999.44 and 149,486.79

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Solution

The fourth proportional to 276,811.20, 381,999.44 and 149,486.79 is: 206,291.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,811.20 : 381,999.44 = 149,486.79 : x
  2. Step 2: Convert to fraction form
    276,811.20/381,999.44 = 149,486.79/x
  3. Step 3: Cross multiply
    276,811.20x = 381,999.44 × 149,486.79
  4. Step 4: Simplify right side
    276,811.20x = 57,103,869,319.96
  5. Step 5: Solve for x
    x = 57,103,869,319.96/276,811.20
  6. Step 6: Final answer
    x = 206,291.76

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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.