Finding the Third Proportional to 105 and 274
Calculator
Solution
The third proportional to 105 and 274 is: 715.01
Step by Step Solution
- Step 1: Write the proportion equation
105 : 274 = 274 : x - Step 2: Convert to fraction form
105/274 = 274/x - Step 3: Cross multiply
105x = 274 × 274 - Step 4: Simplify right side
105x = 75,076 - Step 5: Solve for x
x = 75,076/105 - Step 6: Final answer
x = 715.01
Related Problems
Find third proportional to 52.50 and 137
Half scale
Find third proportional to 210 and 548
Double scale
Find third proportional to 107 and 279
Similar ratio
Find third proportional to 157.50 and 411
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.