Home / 330,943.72-496,122.78-131,403.88

Finding the Fourth Proportional to 330,943.72, 496,122.78 and 131,403.88

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Solution

The fourth proportional to 330,943.72, 496,122.78 and 131,403.88 is: 196,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,943.72 : 496,122.78 = 131,403.88 : x
  2. Step 2: Convert to fraction form
    330,943.72/496,122.78 = 131,403.88/x
  3. Step 3: Cross multiply
    330,943.72x = 496,122.78 × 131,403.88
  4. Step 4: Simplify right side
    330,943.72x = 65,192,458,248.39
  5. Step 5: Solve for x
    x = 65,192,458,248.39/330,943.72
  6. Step 6: Final answer
    x = 196,989.56

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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.