Home / 220.32-330.52-76.08

Finding the Fourth Proportional to 220.32, 330.52 and 76.08

Calculator

Solution

The fourth proportional to 220.32, 330.52 and 76.08 is: 114.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.32 : 330.52 = 76.08 : x
  2. Step 2: Convert to fraction form
    220.32/330.52 = 76.08/x
  3. Step 3: Cross multiply
    220.32x = 330.52 × 76.08
  4. Step 4: Simplify right side
    220.32x = 25,145.96
  5. Step 5: Solve for x
    x = 25,145.96/220.32
  6. Step 6: Final answer
    x = 114.13

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.