Home / 311.76-467.74-203.76

Finding the Fourth Proportional to 311.76, 467.74 and 203.76

Calculator

Solution

The fourth proportional to 311.76, 467.74 and 203.76 is: 305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.76 : 467.74 = 203.76 : x
  2. Step 2: Convert to fraction form
    311.76/467.74 = 203.76/x
  3. Step 3: Cross multiply
    311.76x = 467.74 × 203.76
  4. Step 4: Simplify right side
    311.76x = 95,306.70
  5. Step 5: Solve for x
    x = 95,306.70/311.76
  6. Step 6: Final answer
    x = 305.71

Related Problems

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.