Home / 263.75-406.38

Finding the Third Proportional to 263.75 and 406.38

Calculator

Solution

The third proportional to 263.75 and 406.38 is: 626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.75 : 406.38 = 406.38 : x
  2. Step 2: Convert to fraction form
    263.75/406.38 = 406.38/x
  3. Step 3: Cross multiply
    263.75x = 406.38 × 406.38
  4. Step 4: Simplify right side
    263.75x = 165,140.64
  5. Step 5: Solve for x
    x = 165,140.64/263.75
  6. Step 6: Final answer
    x = 626.13

Related Problems

Find third proportional to 131.88 and 203.19
Half scale
Find third proportional to 527.50 and 812.75
Double scale
Find third proportional to 266 and 409
Similar ratio
Find third proportional to 395.63 and 609.56
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.