Finding the Third Proportional to 208 and 300
Calculator
Solution
The third proportional to 208 and 300 is: 432.69
Step by Step Solution
- Step 1: Write the proportion equation
208 : 300 = 300 : x - Step 2: Convert to fraction form
208/300 = 300/x - Step 3: Cross multiply
208x = 300 × 300 - Step 4: Simplify right side
208x = 90,000 - Step 5: Solve for x
x = 90,000/208 - Step 6: Final answer
x = 432.69
Related Problems
Find third proportional to 104 and 150
Half scale
Find third proportional to 416 and 600
Double scale
Find third proportional to 210 and 303
Similar ratio
Find third proportional to 312 and 450
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.