Home / 262.75-286

Finding the Third Proportional to 262.75 and 286

Calculator

Solution

The third proportional to 262.75 and 286 is: 311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.75 : 286 = 286 : x
  2. Step 2: Convert to fraction form
    262.75/286 = 286/x
  3. Step 3: Cross multiply
    262.75x = 286 × 286
  4. Step 4: Simplify right side
    262.75x = 81,796
  5. Step 5: Solve for x
    x = 81,796/262.75
  6. Step 6: Final answer
    x = 311.31

Related Problems

Find third proportional to 131.38 and 143
Half scale
Find third proportional to 525.50 and 572
Double scale
Find third proportional to 265 and 288
Similar ratio
Find third proportional to 394.13 and 429
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.