Home / 226.69-388.69

Finding the Third Proportional to 226.69 and 388.69

Calculator

Solution

The third proportional to 226.69 and 388.69 is: 666.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.69 : 388.69 = 388.69 : x
  2. Step 2: Convert to fraction form
    226.69/388.69 = 388.69/x
  3. Step 3: Cross multiply
    226.69x = 388.69 × 388.69
  4. Step 4: Simplify right side
    226.69x = 151,077.97
  5. Step 5: Solve for x
    x = 151,077.97/226.69
  6. Step 6: Final answer
    x = 666.46

Related Problems

Find third proportional to 113.34 and 194.34
Half scale
Find third proportional to 453.38 and 777.38
Double scale
Find third proportional to 229 and 392
Similar ratio
Find third proportional to 340.03 and 583.03
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.