Home / 383.20-528.84-217.48

Finding the Fourth Proportional to 383.20, 528.84 and 217.48

Calculator

Solution

The fourth proportional to 383.20, 528.84 and 217.48 is: 300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.20 : 528.84 = 217.48 : x
  2. Step 2: Convert to fraction form
    383.20/528.84 = 217.48/x
  3. Step 3: Cross multiply
    383.20x = 528.84 × 217.48
  4. Step 4: Simplify right side
    383.20x = 115,012.12
  5. Step 5: Solve for x
    x = 115,012.12/383.20
  6. Step 6: Final answer
    x = 300.14

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.