Finding the Third Proportional to 550 and 635.50
Calculator
Solution
The third proportional to 550 and 635.50 is: 734.29
Step by Step Solution
- Step 1: Write the proportion equation
550 : 635.50 = 635.50 : x - Step 2: Convert to fraction form
550/635.50 = 635.50/x - Step 3: Cross multiply
550x = 635.50 × 635.50 - Step 4: Simplify right side
550x = 403,860.25 - Step 5: Solve for x
x = 403,860.25/550 - Step 6: Final answer
x = 734.29
Related Problems
Find third proportional to 275 and 317.75
Half scale
Find third proportional to 1,100 and 1,271
Double scale
Find third proportional to 552 and 638
Similar ratio
Find third proportional to 825 and 953.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.