Finding the Third Proportional to 401 and 443
Calculator
Solution
The third proportional to 401 and 443 is: 489.40
Step by Step Solution
- Step 1: Write the proportion equation
401 : 443 = 443 : x - Step 2: Convert to fraction form
401/443 = 443/x - Step 3: Cross multiply
401x = 443 × 443 - Step 4: Simplify right side
401x = 196,249 - Step 5: Solve for x
x = 196,249/401 - Step 6: Final answer
x = 489.40
Related Problems
Find third proportional to 200.50 and 221.50
Half scale
Find third proportional to 802 and 886
Double scale
Find third proportional to 403 and 445
Similar ratio
Find third proportional to 601.50 and 664.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.