Finding the Third Proportional to 275 and 495
Calculator
Solution
The third proportional to 275 and 495 is: 891
Step by Step Solution
- Step 1: Write the proportion equation
275 : 495 = 495 : x - Step 2: Convert to fraction form
275/495 = 495/x - Step 3: Cross multiply
275x = 495 × 495 - Step 4: Simplify right side
275x = 245,025 - Step 5: Solve for x
x = 245,025/275 - Step 6: Final answer
x = 891
Related Problems
Find third proportional to 137.50 and 247.50
Half scale
Find third proportional to 550 and 990
Double scale
Find third proportional to 277 and 499
Similar ratio
Find third proportional to 412.50 and 742.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.