Home / 207,961.68-311,939.76-50,189.40

Finding the Fourth Proportional to 207,961.68, 311,939.76 and 50,189.40

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Solution

The fourth proportional to 207,961.68, 311,939.76 and 50,189.40 is: 75,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,961.68 : 311,939.76 = 50,189.40 : x
  2. Step 2: Convert to fraction form
    207,961.68/311,939.76 = 50,189.40/x
  3. Step 3: Cross multiply
    207,961.68x = 311,939.76 × 50,189.40
  4. Step 4: Simplify right side
    207,961.68x = 15,656,069,390.54
  5. Step 5: Solve for x
    x = 15,656,069,390.54/207,961.68
  6. Step 6: Final answer
    x = 75,283.43

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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.