Home / 262-309

Finding the Third Proportional to 262 and 309

Calculator

Solution

The third proportional to 262 and 309 is: 364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    262 : 309 = 309 : x
  2. Step 2: Convert to fraction form
    262/309 = 309/x
  3. Step 3: Cross multiply
    262x = 309 × 309
  4. Step 4: Simplify right side
    262x = 95,481
  5. Step 5: Solve for x
    x = 95,481/262
  6. Step 6: Final answer
    x = 364.43

Related Problems

Find third proportional to 131 and 154.50
Half scale
Find third proportional to 524 and 618
Double scale
Find third proportional to 264 and 311
Similar ratio
Find third proportional to 393 and 463.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.