Home / 321-361

Finding the Third Proportional to 321 and 361

Calculator

Solution

The third proportional to 321 and 361 is: 405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    321 : 361 = 361 : x
  2. Step 2: Convert to fraction form
    321/361 = 361/x
  3. Step 3: Cross multiply
    321x = 361 × 361
  4. Step 4: Simplify right side
    321x = 130,321
  5. Step 5: Solve for x
    x = 130,321/321
  6. Step 6: Final answer
    x = 405.98

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.