Home / 207,723.18-311,861.52-140,481.12

Finding the Fourth Proportional to 207,723.18, 311,861.52 and 140,481.12

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Solution

The fourth proportional to 207,723.18, 311,861.52 and 140,481.12 is: 210,908.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,723.18 : 311,861.52 = 140,481.12 : x
  2. Step 2: Convert to fraction form
    207,723.18/311,861.52 = 140,481.12/x
  3. Step 3: Cross multiply
    207,723.18x = 311,861.52 × 140,481.12
  4. Step 4: Simplify right side
    207,723.18x = 43,810,655,614.50
  5. Step 5: Solve for x
    x = 43,810,655,614.50/207,723.18
  6. Step 6: Final answer
    x = 210,908.84

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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.