Home / 207,972.20-311,958.30-119,498.60

Finding the Fourth Proportional to 207,972.20, 311,958.30 and 119,498.60

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Solution

The fourth proportional to 207,972.20, 311,958.30 and 119,498.60 is: 179,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,972.20 : 311,958.30 = 119,498.60 : x
  2. Step 2: Convert to fraction form
    207,972.20/311,958.30 = 119,498.60/x
  3. Step 3: Cross multiply
    207,972.20x = 311,958.30 × 119,498.60
  4. Step 4: Simplify right side
    207,972.20x = 37,278,580,108.38
  5. Step 5: Solve for x
    x = 37,278,580,108.38/207,972.20
  6. Step 6: Final answer
    x = 179,247.90

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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.