Home / 236.91-511.31

Finding the Third Proportional to 236.91 and 511.31

Calculator

Solution

The third proportional to 236.91 and 511.31 is: 1,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.91 : 511.31 = 511.31 : x
  2. Step 2: Convert to fraction form
    236.91/511.31 = 511.31/x
  3. Step 3: Cross multiply
    236.91x = 511.31 × 511.31
  4. Step 4: Simplify right side
    236.91x = 261,440.47
  5. Step 5: Solve for x
    x = 261,440.47/236.91
  6. Step 6: Final answer
    x = 1,103.56

Related Problems

Find third proportional to 118.45 and 255.66
Half scale
Find third proportional to 473.81 and 1,022.63
Double scale
Find third proportional to 239 and 516
Similar ratio
Find third proportional to 355.36 and 766.97
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.