Finding the Third Proportional to 73.50 and 189
Calculator
Solution
The third proportional to 73.50 and 189 is: 486
Step by Step Solution
- Step 1: Write the proportion equation
73.50 : 189 = 189 : x - Step 2: Convert to fraction form
73.50/189 = 189/x - Step 3: Cross multiply
73.50x = 189 × 189 - Step 4: Simplify right side
73.50x = 35,721 - Step 5: Solve for x
x = 35,721/73.50 - Step 6: Final answer
x = 486
Related Problems
Find third proportional to 36.75 and 94.50
Half scale
Find third proportional to 147 and 378
Double scale
Find third proportional to 76 and 194
Similar ratio
Find third proportional to 110.25 and 283.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.