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Finding the Fourth Proportional to 300,801.78, 451,180.11 and 87,571.33

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Solution

The fourth proportional to 300,801.78, 451,180.11 and 87,571.33 is: 131,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,801.78 : 451,180.11 = 87,571.33 : x
  2. Step 2: Convert to fraction form
    300,801.78/451,180.11 = 87,571.33/x
  3. Step 3: Cross multiply
    300,801.78x = 451,180.11 × 87,571.33
  4. Step 4: Simplify right side
    300,801.78x = 39,510,442,302.25
  5. Step 5: Solve for x
    x = 39,510,442,302.25/300,801.78
  6. Step 6: Final answer
    x = 131,350.43

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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.