Home / 408.42-563.66-233.78

Finding the Fourth Proportional to 408.42, 563.66 and 233.78

Calculator

Solution

The fourth proportional to 408.42, 563.66 and 233.78 is: 322.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    408.42 : 563.66 = 233.78 : x
  2. Step 2: Convert to fraction form
    408.42/563.66 = 233.78/x
  3. Step 3: Cross multiply
    408.42x = 563.66 × 233.78
  4. Step 4: Simplify right side
    408.42x = 131,768.45
  5. Step 5: Solve for x
    x = 131,768.45/408.42
  6. Step 6: Final answer
    x = 322.63

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.