Home / 323.28-486-242.28

Finding the Fourth Proportional to 323.28, 486 and 242.28

Calculator

Solution

The fourth proportional to 323.28, 486 and 242.28 is: 364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.28 : 486 = 242.28 : x
  2. Step 2: Convert to fraction form
    323.28/486 = 242.28/x
  3. Step 3: Cross multiply
    323.28x = 486 × 242.28
  4. Step 4: Simplify right side
    323.28x = 117,748.08
  5. Step 5: Solve for x
    x = 117,748.08/323.28
  6. Step 6: Final answer
    x = 364.23

Related Problems

Find fourth proportional to 161.64, 243 and 121.14
Half scale
Find fourth proportional to 646.56, 972 and 484.56
Double scale
Find fourth proportional to 324.28, 487.50 and 243.28
Similar ratio
Find fourth proportional to 484.92, 729 and 363.42
1.5x scale

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.