Home / 90-242

Finding the Third Proportional to 90 and 242

Calculator

Solution

The third proportional to 90 and 242 is: 650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90 : 242 = 242 : x
  2. Step 2: Convert to fraction form
    90/242 = 242/x
  3. Step 3: Cross multiply
    90x = 242 × 242
  4. Step 4: Simplify right side
    90x = 58,564
  5. Step 5: Solve for x
    x = 58,564/90
  6. Step 6: Final answer
    x = 650.71

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.