Home / 221.06-331.41-147.96

Finding the Fourth Proportional to 221.06, 331.41 and 147.96

Calculator

Solution

The fourth proportional to 221.06, 331.41 and 147.96 is: 221.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.06 : 331.41 = 147.96 : x
  2. Step 2: Convert to fraction form
    221.06/331.41 = 147.96/x
  3. Step 3: Cross multiply
    221.06x = 331.41 × 147.96
  4. Step 4: Simplify right side
    221.06x = 49,035.42
  5. Step 5: Solve for x
    x = 49,035.42/221.06
  6. Step 6: Final answer
    x = 221.82

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.