Home / 454.25-512.75

Finding the Third Proportional to 454.25 and 512.75

Calculator

Solution

The third proportional to 454.25 and 512.75 is: 578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.25 : 512.75 = 512.75 : x
  2. Step 2: Convert to fraction form
    454.25/512.75 = 512.75/x
  3. Step 3: Cross multiply
    454.25x = 512.75 × 512.75
  4. Step 4: Simplify right side
    454.25x = 262,912.56
  5. Step 5: Solve for x
    x = 262,912.56/454.25
  6. Step 6: Final answer
    x = 578.78

Related Problems

Find third proportional to 227.13 and 256.38
Half scale
Find third proportional to 908.50 and 1,025.50
Double scale
Find third proportional to 456 and 515
Similar ratio
Find third proportional to 681.38 and 769.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.