Home / 365.50-512.75

Finding the Third Proportional to 365.50 and 512.75

Calculator

Solution

The third proportional to 365.50 and 512.75 is: 719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.50 : 512.75 = 512.75 : x
  2. Step 2: Convert to fraction form
    365.50/512.75 = 512.75/x
  3. Step 3: Cross multiply
    365.50x = 512.75 × 512.75
  4. Step 4: Simplify right side
    365.50x = 262,912.56
  5. Step 5: Solve for x
    x = 262,912.56/365.50
  6. Step 6: Final answer
    x = 719.32

Related Problems

Find third proportional to 182.75 and 256.38
Half scale
Find third proportional to 731 and 1,025.50
Double scale
Find third proportional to 368 and 516
Similar ratio
Find third proportional to 548.25 and 769.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.