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Finding the Fourth Proportional to 383,785.62, 575,674.38 and 131,063.22

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Solution

The fourth proportional to 383,785.62, 575,674.38 and 131,063.22 is: 196,593.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,785.62 : 575,674.38 = 131,063.22 : x
  2. Step 2: Convert to fraction form
    383,785.62/575,674.38 = 131,063.22/x
  3. Step 3: Cross multiply
    383,785.62x = 575,674.38 × 131,063.22
  4. Step 4: Simplify right side
    383,785.62x = 75,449,737,914.30
  5. Step 5: Solve for x
    x = 75,449,737,914.30/383,785.62
  6. Step 6: Final answer
    x = 196,593.45

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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.