Home / 331,406.20-496,817.70-198,339.40

Finding the Fourth Proportional to 331,406.20, 496,817.70 and 198,339.40

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Solution

The fourth proportional to 331,406.20, 496,817.70 and 198,339.40 is: 297,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,406.20 : 496,817.70 = 198,339.40 : x
  2. Step 2: Convert to fraction form
    331,406.20/496,817.70 = 198,339.40/x
  3. Step 3: Cross multiply
    331,406.20x = 496,817.70 × 198,339.40
  4. Step 4: Simplify right side
    331,406.20x = 98,538,524,527.38
  5. Step 5: Solve for x
    x = 98,538,524,527.38/331,406.20
  6. Step 6: Final answer
    x = 297,334.58

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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.