Finding the Third Proportional to 168 and 252
Calculator
Solution
The third proportional to 168 and 252 is: 378
Step by Step Solution
- Step 1: Write the proportion equation
168 : 252 = 252 : x - Step 2: Convert to fraction form
168/252 = 252/x - Step 3: Cross multiply
168x = 252 × 252 - Step 4: Simplify right side
168x = 63,504 - Step 5: Solve for x
x = 63,504/168 - Step 6: Final answer
x = 378
Related Problems
Find third proportional to 84 and 126
Half scale
Find third proportional to 336 and 504
Double scale
Find third proportional to 170 and 255
Similar ratio
Find third proportional to 252 and 378
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.