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Finding the Fourth Proportional to 378,759.38, 568,234.22 and 108,888.01

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Solution

The fourth proportional to 378,759.38, 568,234.22 and 108,888.01 is: 163,359.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,759.38 : 568,234.22 = 108,888.01 : x
  2. Step 2: Convert to fraction form
    378,759.38/568,234.22 = 108,888.01/x
  3. Step 3: Cross multiply
    378,759.38x = 568,234.22 × 108,888.01
  4. Step 4: Simplify right side
    378,759.38x = 61,873,891,464.68
  5. Step 5: Solve for x
    x = 61,873,891,464.68/378,759.38
  6. Step 6: Final answer
    x = 163,359.37

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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.