Home / 252.75-439.88

Finding the Third Proportional to 252.75 and 439.88

Calculator

Solution

The third proportional to 252.75 and 439.88 is: 765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.75 : 439.88 = 439.88 : x
  2. Step 2: Convert to fraction form
    252.75/439.88 = 439.88/x
  3. Step 3: Cross multiply
    252.75x = 439.88 × 439.88
  4. Step 4: Simplify right side
    252.75x = 193,490.02
  5. Step 5: Solve for x
    x = 193,490.02/252.75
  6. Step 6: Final answer
    x = 765.54

Related Problems

Find third proportional to 126.38 and 219.94
Half scale
Find third proportional to 505.50 and 879.75
Double scale
Find third proportional to 255 and 443
Similar ratio
Find third proportional to 379.13 and 659.81
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.