Finding the Third Proportional to 553 and 825
Calculator
Solution
The third proportional to 553 and 825 is: 1,230.79
Step by Step Solution
- Step 1: Write the proportion equation
553 : 825 = 825 : x - Step 2: Convert to fraction form
553/825 = 825/x - Step 3: Cross multiply
553x = 825 × 825 - Step 4: Simplify right side
553x = 680,625 - Step 5: Solve for x
x = 680,625/553 - Step 6: Final answer
x = 1,230.79
Related Problems
Find third proportional to 276.50 and 412.50
Half scale
Find third proportional to 1,106 and 1,650
Double scale
Find third proportional to 555 and 828
Similar ratio
Find third proportional to 829.50 and 1,237.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.