Finding the Third Proportional to 385 and 442
Calculator
Solution
The third proportional to 385 and 442 is: 507.44
Step by Step Solution
- Step 1: Write the proportion equation
385 : 442 = 442 : x - Step 2: Convert to fraction form
385/442 = 442/x - Step 3: Cross multiply
385x = 442 × 442 - Step 4: Simplify right side
385x = 195,364 - Step 5: Solve for x
x = 195,364/385 - Step 6: Final answer
x = 507.44
Related Problems
Find third proportional to 192.50 and 221
Half scale
Find third proportional to 770 and 884
Double scale
Find third proportional to 387 and 444
Similar ratio
Find third proportional to 577.50 and 663
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.