Home / 197-285

Finding the Third Proportional to 197 and 285

Calculator

Solution

The third proportional to 197 and 285 is: 412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    197 : 285 = 285 : x
  2. Step 2: Convert to fraction form
    197/285 = 285/x
  3. Step 3: Cross multiply
    197x = 285 × 285
  4. Step 4: Simplify right side
    197x = 81,225
  5. Step 5: Solve for x
    x = 81,225/197
  6. Step 6: Final answer
    x = 412.31

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.