Home / 30.38-67.50

Finding the Third Proportional to 30.38 and 67.50

Calculator

Solution

The third proportional to 30.38 and 67.50 is: 150

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.38 : 67.50 = 67.50 : x
  2. Step 2: Convert to fraction form
    30.38/67.50 = 67.50/x
  3. Step 3: Cross multiply
    30.38x = 67.50 × 67.50
  4. Step 4: Simplify right side
    30.38x = 4,556.25
  5. Step 5: Solve for x
    x = 4,556.25/30.38
  6. Step 6: Final answer
    x = 150

Related Problems

Find third proportional to 15.19 and 33.75
Half scale
Find third proportional to 60.75 and 135
Double scale
Find third proportional to 32 and 72
Similar ratio
Find third proportional to 45.56 and 101.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.