Home / 207,933.70-311,900.55-113,455.30

Finding the Fourth Proportional to 207,933.70, 311,900.55 and 113,455.30

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Solution

The fourth proportional to 207,933.70, 311,900.55 and 113,455.30 is: 170,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,933.70 : 311,900.55 = 113,455.30 : x
  2. Step 2: Convert to fraction form
    207,933.70/311,900.55 = 113,455.30/x
  3. Step 3: Cross multiply
    207,933.70x = 311,900.55 × 113,455.30
  4. Step 4: Simplify right side
    207,933.70x = 35,386,770,470.42
  5. Step 5: Solve for x
    x = 35,386,770,470.42/207,933.70
  6. Step 6: Final answer
    x = 170,182.95

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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.