Home / 207,939.10-311,447.85-161,039.90

Finding the Fourth Proportional to 207,939.10, 311,447.85 and 161,039.90

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Solution

The fourth proportional to 207,939.10, 311,447.85 and 161,039.90 is: 241,202.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,939.10 : 311,447.85 = 161,039.90 : x
  2. Step 2: Convert to fraction form
    207,939.10/311,447.85 = 161,039.90/x
  3. Step 3: Cross multiply
    207,939.10x = 311,447.85 × 161,039.90
  4. Step 4: Simplify right side
    207,939.10x = 50,155,530,619.22
  5. Step 5: Solve for x
    x = 50,155,530,619.22/207,939.10
  6. Step 6: Final answer
    x = 241,202.98

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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.