Finding the Third Proportional to 335 and 407
Calculator
Solution
The third proportional to 335 and 407 is: 494.47
Step by Step Solution
- Step 1: Write the proportion equation
335 : 407 = 407 : x - Step 2: Convert to fraction form
335/407 = 407/x - Step 3: Cross multiply
335x = 407 × 407 - Step 4: Simplify right side
335x = 165,649 - Step 5: Solve for x
x = 165,649/335 - Step 6: Final answer
x = 494.47
Related Problems
Find third proportional to 167.50 and 203.50
Half scale
Find third proportional to 670 and 814
Double scale
Find third proportional to 337 and 409
Similar ratio
Find third proportional to 502.50 and 610.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.