Home / 158.04-320.36

Finding the Third Proportional to 158.04 and 320.36

Calculator

Solution

The third proportional to 158.04 and 320.36 is: 649.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.04 : 320.36 = 320.36 : x
  2. Step 2: Convert to fraction form
    158.04/320.36 = 320.36/x
  3. Step 3: Cross multiply
    158.04x = 320.36 × 320.36
  4. Step 4: Simplify right side
    158.04x = 102,631.38
  5. Step 5: Solve for x
    x = 102,631.38/158.04
  6. Step 6: Final answer
    x = 649.38

Related Problems

Find third proportional to 79.02 and 160.18
Half scale
Find third proportional to 316.09 and 640.72
Double scale
Find third proportional to 160 and 324
Similar ratio
Find third proportional to 237.07 and 480.54
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.