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Finding the Fourth Proportional to 383,855.44, 575,885.26 and 131,135.56

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Solution

The fourth proportional to 383,855.44, 575,885.26 and 131,135.56 is: 196,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,855.44 : 575,885.26 = 131,135.56 : x
  2. Step 2: Convert to fraction form
    383,855.44/575,885.26 = 131,135.56/x
  3. Step 3: Cross multiply
    383,855.44x = 575,885.26 × 131,135.56
  4. Step 4: Simplify right side
    383,855.44x = 75,519,036,065.85
  5. Step 5: Solve for x
    x = 75,519,036,065.85/383,855.44
  6. Step 6: Final answer
    x = 196,738.22

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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.