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Finding the Fourth Proportional to 378,741.06, 568,110.87 and 220,858.80

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Solution

The fourth proportional to 378,741.06, 568,110.87 and 220,858.80 is: 331,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,741.06 : 568,110.87 = 220,858.80 : x
  2. Step 2: Convert to fraction form
    378,741.06/568,110.87 = 220,858.80/x
  3. Step 3: Cross multiply
    378,741.06x = 568,110.87 × 220,858.80
  4. Step 4: Simplify right side
    378,741.06x = 125,472,285,015.16
  5. Step 5: Solve for x
    x = 125,472,285,015.16/378,741.06
  6. Step 6: Final answer
    x = 331,287.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.