Home / 268-315.50

Finding the Third Proportional to 268 and 315.50

Calculator

Solution

The third proportional to 268 and 315.50 is: 371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268 : 315.50 = 315.50 : x
  2. Step 2: Convert to fraction form
    268/315.50 = 315.50/x
  3. Step 3: Cross multiply
    268x = 315.50 × 315.50
  4. Step 4: Simplify right side
    268x = 99,540.25
  5. Step 5: Solve for x
    x = 99,540.25/268
  6. Step 6: Final answer
    x = 371.42

Related Problems

Find third proportional to 134 and 157.75
Half scale
Find third proportional to 536 and 631
Double scale
Find third proportional to 270 and 318
Similar ratio
Find third proportional to 402 and 473.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.