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Finding the Fourth Proportional to 188,843.85, 283,237.80 and 68,872.66

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Solution

The fourth proportional to 188,843.85, 283,237.80 and 68,872.66 is: 103,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,843.85 : 283,237.80 = 68,872.66 : x
  2. Step 2: Convert to fraction form
    188,843.85/283,237.80 = 68,872.66/x
  3. Step 3: Cross multiply
    188,843.85x = 283,237.80 × 68,872.66
  4. Step 4: Simplify right side
    188,843.85x = 19,507,339,282.36
  5. Step 5: Solve for x
    x = 19,507,339,282.36/188,843.85
  6. Step 6: Final answer
    x = 103,298.78

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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.