Home / 221.82-332.52-77.45

Finding the Fourth Proportional to 221.82, 332.52 and 77.45

Calculator

Solution

The fourth proportional to 221.82, 332.52 and 77.45 is: 116.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.82 : 332.52 = 77.45 : x
  2. Step 2: Convert to fraction form
    221.82/332.52 = 77.45/x
  3. Step 3: Cross multiply
    221.82x = 332.52 × 77.45
  4. Step 4: Simplify right side
    221.82x = 25,752.01
  5. Step 5: Solve for x
    x = 25,752.01/221.82
  6. Step 6: Final answer
    x = 116.09

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.