Home / 207,961.70-311,942.55-165,151.18

Finding the Fourth Proportional to 207,961.70, 311,942.55 and 165,151.18

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Solution

The fourth proportional to 207,961.70, 311,942.55 and 165,151.18 is: 247,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,961.70 : 311,942.55 = 165,151.18 : x
  2. Step 2: Convert to fraction form
    207,961.70/311,942.55 = 165,151.18/x
  3. Step 3: Cross multiply
    207,961.70x = 311,942.55 × 165,151.18
  4. Step 4: Simplify right side
    207,961.70x = 51,517,678,665.00
  5. Step 5: Solve for x
    x = 51,517,678,665.00/207,961.70
  6. Step 6: Final answer
    x = 247,726.76

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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.