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Finding the Fourth Proportional to 303,469.73, 418,755.78 and 174,382.05

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Solution

The fourth proportional to 303,469.73, 418,755.78 and 174,382.05 is: 240,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,469.73 : 418,755.78 = 174,382.05 : x
  2. Step 2: Convert to fraction form
    303,469.73/418,755.78 = 174,382.05/x
  3. Step 3: Cross multiply
    303,469.73x = 418,755.78 × 174,382.05
  4. Step 4: Simplify right side
    303,469.73x = 73,023,491,365.75
  5. Step 5: Solve for x
    x = 73,023,491,365.75/303,469.73
  6. Step 6: Final answer
    x = 240,628.59

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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.