Finding the Third Proportional to 350 and 380.50
Calculator
Solution
The third proportional to 350 and 380.50 is: 413.66
Step by Step Solution
- Step 1: Write the proportion equation
350 : 380.50 = 380.50 : x - Step 2: Convert to fraction form
350/380.50 = 380.50/x - Step 3: Cross multiply
350x = 380.50 × 380.50 - Step 4: Simplify right side
350x = 144,780.25 - Step 5: Solve for x
x = 144,780.25/350 - Step 6: Final answer
x = 413.66
Related Problems
Find third proportional to 175 and 190.25
Half scale
Find third proportional to 700 and 761
Double scale
Find third proportional to 352 and 383
Similar ratio
Find third proportional to 525 and 570.75
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.