Finding the Third Proportional to 299 and 415
Calculator
Solution
The third proportional to 299 and 415 is: 576.00
Step by Step Solution
- Step 1: Write the proportion equation
299 : 415 = 415 : x - Step 2: Convert to fraction form
299/415 = 415/x - Step 3: Cross multiply
299x = 415 × 415 - Step 4: Simplify right side
299x = 172,225 - Step 5: Solve for x
x = 172,225/299 - Step 6: Final answer
x = 576.00
Related Problems
Find third proportional to 149.50 and 207.50
Half scale
Find third proportional to 598 and 830
Double scale
Find third proportional to 301 and 418
Similar ratio
Find third proportional to 448.50 and 622.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.