Home / 331,619.20-496,651.20-225,865.60

Finding the Fourth Proportional to 331,619.20, 496,651.20 and 225,865.60

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Solution

The fourth proportional to 331,619.20, 496,651.20 and 225,865.60 is: 338,268.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,619.20 : 496,651.20 = 225,865.60 : x
  2. Step 2: Convert to fraction form
    331,619.20/496,651.20 = 225,865.60/x
  3. Step 3: Cross multiply
    331,619.20x = 496,651.20 × 225,865.60
  4. Step 4: Simplify right side
    331,619.20x = 112,176,421,278.72
  5. Step 5: Solve for x
    x = 112,176,421,278.72/331,619.20
  6. Step 6: Final answer
    x = 338,268.78

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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.