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Finding the Fourth Proportional to 378,219.87, 567,371.32 and 188,727.93

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Solution

The fourth proportional to 378,219.87, 567,371.32 and 188,727.93 is: 283,112.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,219.87 : 567,371.32 = 188,727.93 : x
  2. Step 2: Convert to fraction form
    378,219.87/567,371.32 = 188,727.93/x
  3. Step 3: Cross multiply
    378,219.87x = 567,371.32 × 188,727.93
  4. Step 4: Simplify right side
    378,219.87x = 107,078,814,293.15
  5. Step 5: Solve for x
    x = 107,078,814,293.15/378,219.87
  6. Step 6: Final answer
    x = 283,112.61

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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.