Finding the Third Proportional to 181.50 and 213.75
Calculator
Solution
The third proportional to 181.50 and 213.75 is: 251.73
Step by Step Solution
- Step 1: Write the proportion equation
181.50 : 213.75 = 213.75 : x - Step 2: Convert to fraction form
181.50/213.75 = 213.75/x - Step 3: Cross multiply
181.50x = 213.75 × 213.75 - Step 4: Simplify right side
181.50x = 45,689.06 - Step 5: Solve for x
x = 45,689.06/181.50 - Step 6: Final answer
x = 251.73
Related Problems
Find third proportional to 90.75 and 106.88
Half scale
Find third proportional to 363 and 427.50
Double scale
Find third proportional to 184 and 216
Similar ratio
Find third proportional to 272.25 and 320.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.