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Finding the Fourth Proportional to 270,091.88, 372,716.78 and 149,230.57

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Solution

The fourth proportional to 270,091.88, 372,716.78 and 149,230.57 is: 205,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,091.88 : 372,716.78 = 149,230.57 : x
  2. Step 2: Convert to fraction form
    270,091.88/372,716.78 = 149,230.57/x
  3. Step 3: Cross multiply
    270,091.88x = 372,716.78 × 149,230.57
  4. Step 4: Simplify right side
    270,091.88x = 55,620,735,850.02
  5. Step 5: Solve for x
    x = 55,620,735,850.02/270,091.88
  6. Step 6: Final answer
    x = 205,932.65

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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.