Home / 239-518

Finding the Third Proportional to 239 and 518

Calculator

Solution

The third proportional to 239 and 518 is: 1,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    239 : 518 = 518 : x
  2. Step 2: Convert to fraction form
    239/518 = 518/x
  3. Step 3: Cross multiply
    239x = 518 × 518
  4. Step 4: Simplify right side
    239x = 268,324
  5. Step 5: Solve for x
    x = 268,324/239
  6. Step 6: Final answer
    x = 1,122.69

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.