Finding the Third Proportional to 69 and 185.50
Calculator
Solution
The third proportional to 69 and 185.50 is: 498.70
Step by Step Solution
- Step 1: Write the proportion equation
69 : 185.50 = 185.50 : x - Step 2: Convert to fraction form
69/185.50 = 185.50/x - Step 3: Cross multiply
69x = 185.50 × 185.50 - Step 4: Simplify right side
69x = 34,410.25 - Step 5: Solve for x
x = 34,410.25/69 - Step 6: Final answer
x = 498.70
Related Problems
Find third proportional to 34.50 and 92.75
Half scale
Find third proportional to 138 and 371
Double scale
Find third proportional to 71 and 191
Similar ratio
Find third proportional to 103.50 and 278.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.