Home / 117-195

Finding the Third Proportional to 117 and 195

Calculator

Solution

The third proportional to 117 and 195 is: 325

Step by Step Solution

  1. Step 1: Write the proportion equation
    117 : 195 = 195 : x
  2. Step 2: Convert to fraction form
    117/195 = 195/x
  3. Step 3: Cross multiply
    117x = 195 × 195
  4. Step 4: Simplify right side
    117x = 38,025
  5. Step 5: Solve for x
    x = 38,025/117
  6. Step 6: Final answer
    x = 325

Related Problems

Find third proportional to 58.50 and 97.50
Half scale
Find third proportional to 234 and 390
Double scale
Find third proportional to 119 and 198
Similar ratio
Find third proportional to 175.50 and 292.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.