Home / 207.49-311.23-79.24

Finding the Fourth Proportional to 207.49, 311.23 and 79.24

Calculator

Solution

The fourth proportional to 207.49, 311.23 and 79.24 is: 118.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.49 : 311.23 = 79.24 : x
  2. Step 2: Convert to fraction form
    207.49/311.23 = 79.24/x
  3. Step 3: Cross multiply
    207.49x = 311.23 × 79.24
  4. Step 4: Simplify right side
    207.49x = 24,659.91
  5. Step 5: Solve for x
    x = 24,659.91/207.49
  6. Step 6: Final answer
    x = 118.85

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.