Home / 54.75-135

Finding the Third Proportional to 54.75 and 135

Calculator

Solution

The third proportional to 54.75 and 135 is: 332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54.75 : 135 = 135 : x
  2. Step 2: Convert to fraction form
    54.75/135 = 135/x
  3. Step 3: Cross multiply
    54.75x = 135 × 135
  4. Step 4: Simplify right side
    54.75x = 18,225
  5. Step 5: Solve for x
    x = 18,225/54.75
  6. Step 6: Final answer
    x = 332.88

Related Problems

Find third proportional to 27.38 and 67.50
Half scale
Find third proportional to 109.50 and 270
Double scale
Find third proportional to 57 and 140
Similar ratio
Find third proportional to 82.13 and 202.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.