Home / 327.50-388

Finding the Third Proportional to 327.50 and 388

Calculator

Solution

The third proportional to 327.50 and 388 is: 459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.50 : 388 = 388 : x
  2. Step 2: Convert to fraction form
    327.50/388 = 388/x
  3. Step 3: Cross multiply
    327.50x = 388 × 388
  4. Step 4: Simplify right side
    327.50x = 150,544
  5. Step 5: Solve for x
    x = 150,544/327.50
  6. Step 6: Final answer
    x = 459.68

Related Problems

Find third proportional to 163.75 and 194
Half scale
Find third proportional to 655 and 776
Double scale
Find third proportional to 330 and 390
Similar ratio
Find third proportional to 491.25 and 582
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.