Finding the Third Proportional to 154 and 281
Calculator
Solution
The third proportional to 154 and 281 is: 512.73
Step by Step Solution
- Step 1: Write the proportion equation
154 : 281 = 281 : x - Step 2: Convert to fraction form
154/281 = 281/x - Step 3: Cross multiply
154x = 281 × 281 - Step 4: Simplify right side
154x = 78,961 - Step 5: Solve for x
x = 78,961/154 - Step 6: Final answer
x = 512.73
Related Problems
Find third proportional to 77 and 140.50
Half scale
Find third proportional to 308 and 562
Double scale
Find third proportional to 156 and 285
Similar ratio
Find third proportional to 231 and 421.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.82) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.