Finding the Third Proportional to 394 and 442
Calculator
Solution
The third proportional to 394 and 442 is: 495.85
Step by Step Solution
- Step 1: Write the proportion equation
394 : 442 = 442 : x - Step 2: Convert to fraction form
394/442 = 442/x - Step 3: Cross multiply
394x = 442 × 442 - Step 4: Simplify right side
394x = 195,364 - Step 5: Solve for x
x = 195,364/394 - Step 6: Final answer
x = 495.85
Related Problems
Find third proportional to 197 and 221
Half scale
Find third proportional to 788 and 884
Double scale
Find third proportional to 396 and 444
Similar ratio
Find third proportional to 591 and 663
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.