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Finding the Fourth Proportional to 375,868.33, 518,773.70 and 222,991.41

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Solution

The fourth proportional to 375,868.33, 518,773.70 and 222,991.41 is: 307,772.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,868.33 : 518,773.70 = 222,991.41 : x
  2. Step 2: Convert to fraction form
    375,868.33/518,773.70 = 222,991.41/x
  3. Step 3: Cross multiply
    375,868.33x = 518,773.70 × 222,991.41
  4. Step 4: Simplify right side
    375,868.33x = 115,682,078,833.92
  5. Step 5: Solve for x
    x = 115,682,078,833.92/375,868.33
  6. Step 6: Final answer
    x = 307,772.88

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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.