Home / 137-316.75

Finding the Third Proportional to 137 and 316.75

Calculator

Solution

The third proportional to 137 and 316.75 is: 732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137 : 316.75 = 316.75 : x
  2. Step 2: Convert to fraction form
    137/316.75 = 316.75/x
  3. Step 3: Cross multiply
    137x = 316.75 × 316.75
  4. Step 4: Simplify right side
    137x = 100,330.56
  5. Step 5: Solve for x
    x = 100,330.56/137
  6. Step 6: Final answer
    x = 732.34

Related Problems

Find third proportional to 68.50 and 158.38
Half scale
Find third proportional to 274 and 633.50
Double scale
Find third proportional to 139 and 321
Similar ratio
Find third proportional to 205.50 and 475.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.