Home / 551.88-812.75

Finding the Third Proportional to 551.88 and 812.75

Calculator

Solution

The third proportional to 551.88 and 812.75 is: 1,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.88 : 812.75 = 812.75 : x
  2. Step 2: Convert to fraction form
    551.88/812.75 = 812.75/x
  3. Step 3: Cross multiply
    551.88x = 812.75 × 812.75
  4. Step 4: Simplify right side
    551.88x = 660,562.56
  5. Step 5: Solve for x
    x = 660,562.56/551.88
  6. Step 6: Final answer
    x = 1,196.94

Related Problems

Find third proportional to 275.94 and 406.38
Half scale
Find third proportional to 1,103.75 and 1,625.50
Double scale
Find third proportional to 554 and 816
Similar ratio
Find third proportional to 827.81 and 1,219.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.