Home / 366-408

Finding the Third Proportional to 366 and 408

Calculator

Solution

The third proportional to 366 and 408 is: 454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    366 : 408 = 408 : x
  2. Step 2: Convert to fraction form
    366/408 = 408/x
  3. Step 3: Cross multiply
    366x = 408 × 408
  4. Step 4: Simplify right side
    366x = 166,464
  5. Step 5: Solve for x
    x = 166,464/366
  6. Step 6: Final answer
    x = 454.82

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.