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Finding the Fourth Proportional to 325,540.77, 449,135.43 and 189,545.94

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Solution

The fourth proportional to 325,540.77, 449,135.43 and 189,545.94 is: 261,508.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,540.77 : 449,135.43 = 189,545.94 : x
  2. Step 2: Convert to fraction form
    325,540.77/449,135.43 = 189,545.94/x
  3. Step 3: Cross multiply
    325,540.77x = 449,135.43 × 189,545.94
  4. Step 4: Simplify right side
    325,540.77x = 85,131,797,266.65
  5. Step 5: Solve for x
    x = 85,131,797,266.65/325,540.77
  6. Step 6: Final answer
    x = 261,508.86

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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.