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Finding the Fourth Proportional to 303,879.64, 419,348.12 and 167,910.68

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Solution

The fourth proportional to 303,879.64, 419,348.12 and 167,910.68 is: 231,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,879.64 : 419,348.12 = 167,910.68 : x
  2. Step 2: Convert to fraction form
    303,879.64/419,348.12 = 167,910.68/x
  3. Step 3: Cross multiply
    303,879.64x = 419,348.12 × 167,910.68
  4. Step 4: Simplify right side
    303,879.64x = 70,413,027,985.92
  5. Step 5: Solve for x
    x = 70,413,027,985.92/303,879.64
  6. Step 6: Final answer
    x = 231,713.54

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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.