Home / 207,791.38-311,609.31-163,934.74

Finding the Fourth Proportional to 207,791.38, 311,609.31 and 163,934.74

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Solution

The fourth proportional to 207,791.38, 311,609.31 and 163,934.74 is: 245,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,791.38 : 311,609.31 = 163,934.74 : x
  2. Step 2: Convert to fraction form
    207,791.38/311,609.31 = 163,934.74/x
  3. Step 3: Cross multiply
    207,791.38x = 311,609.31 × 163,934.74
  4. Step 4: Simplify right side
    207,791.38x = 51,083,591,216.43
  5. Step 5: Solve for x
    x = 51,083,591,216.43/207,791.38
  6. Step 6: Final answer
    x = 245,840.76

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1.5x scale

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.