Home / 150.25-320.50

Finding the Third Proportional to 150.25 and 320.50

Calculator

Solution

The third proportional to 150.25 and 320.50 is: 683.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.25 : 320.50 = 320.50 : x
  2. Step 2: Convert to fraction form
    150.25/320.50 = 320.50/x
  3. Step 3: Cross multiply
    150.25x = 320.50 × 320.50
  4. Step 4: Simplify right side
    150.25x = 102,720.25
  5. Step 5: Solve for x
    x = 102,720.25/150.25
  6. Step 6: Final answer
    x = 683.66

Related Problems

Find third proportional to 75.13 and 160.25
Half scale
Find third proportional to 300.50 and 641
Double scale
Find third proportional to 152 and 325
Similar ratio
Find third proportional to 225.38 and 480.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.