Home / 324,839.12-487,286-119,729.50

Finding the Fourth Proportional to 324,839.12, 487,286 and 119,729.50

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Solution

The fourth proportional to 324,839.12, 487,286 and 119,729.50 is: 179,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,839.12 : 487,286 = 119,729.50 : x
  2. Step 2: Convert to fraction form
    324,839.12/487,286 = 119,729.50/x
  3. Step 3: Cross multiply
    324,839.12x = 487,286 × 119,729.50
  4. Step 4: Simplify right side
    324,839.12x = 58,342,509,137
  5. Step 5: Solve for x
    x = 58,342,509,137/324,839.12
  6. Step 6: Final answer
    x = 179,604.32

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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.