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Finding the Fourth Proportional to 274,147.79, 378,404.42 and 159,453.41

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Solution

The fourth proportional to 274,147.79, 378,404.42 and 159,453.41 is: 220,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,147.79 : 378,404.42 = 159,453.41 : x
  2. Step 2: Convert to fraction form
    274,147.79/378,404.42 = 159,453.41/x
  3. Step 3: Cross multiply
    274,147.79x = 378,404.42 × 159,453.41
  4. Step 4: Simplify right side
    274,147.79x = 60,337,872,438.78
  5. Step 5: Solve for x
    x = 60,337,872,438.78/274,147.79
  6. Step 6: Final answer
    x = 220,092.50

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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.