Finding the Third Proportional to 256 and 301.50
Calculator
Solution
The third proportional to 256 and 301.50 is: 355.09
Step by Step Solution
- Step 1: Write the proportion equation
256 : 301.50 = 301.50 : x - Step 2: Convert to fraction form
256/301.50 = 301.50/x - Step 3: Cross multiply
256x = 301.50 × 301.50 - Step 4: Simplify right side
256x = 90,902.25 - Step 5: Solve for x
x = 90,902.25/256 - Step 6: Final answer
x = 355.09
Related Problems
Find third proportional to 128 and 150.75
Half scale
Find third proportional to 512 and 603
Double scale
Find third proportional to 258 and 304
Similar ratio
Find third proportional to 384 and 452.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.