Home / 336.38-684.75

Finding the Third Proportional to 336.38 and 684.75

Calculator

Solution

The third proportional to 336.38 and 684.75 is: 1,393.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.38 : 684.75 = 684.75 : x
  2. Step 2: Convert to fraction form
    336.38/684.75 = 684.75/x
  3. Step 3: Cross multiply
    336.38x = 684.75 × 684.75
  4. Step 4: Simplify right side
    336.38x = 468,882.56
  5. Step 5: Solve for x
    x = 468,882.56/336.38
  6. Step 6: Final answer
    x = 1,393.93

Related Problems

Find third proportional to 168.19 and 342.38
Half scale
Find third proportional to 672.75 and 1,369.50
Double scale
Find third proportional to 338 and 689
Similar ratio
Find third proportional to 504.56 and 1,027.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.