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Finding the Fourth Proportional to 330,793.62, 496,131.18 and 87,636.34

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Solution

The fourth proportional to 330,793.62, 496,131.18 and 87,636.34 is: 131,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,793.62 : 496,131.18 = 87,636.34 : x
  2. Step 2: Convert to fraction form
    330,793.62/496,131.18 = 87,636.34/x
  3. Step 3: Cross multiply
    330,793.62x = 496,131.18 × 87,636.34
  4. Step 4: Simplify right side
    330,793.62x = 43,479,120,775.08
  5. Step 5: Solve for x
    x = 43,479,120,775.08/330,793.62
  6. Step 6: Final answer
    x = 131,438.81

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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.