Finding the Third Proportional to 64,788 and 139,512
Calculator
Solution
The third proportional to 64,788 and 139,512 is: 300,419.80
Step by Step Solution
- Step 1: Write the proportion equation
64,788 : 139,512 = 139,512 : x - Step 2: Convert to fraction form
64,788/139,512 = 139,512/x - Step 3: Cross multiply
64,788x = 139,512 × 139,512 - Step 4: Simplify right side
64,788x = 19,463,598,144 - Step 5: Solve for x
x = 19,463,598,144/64,788 - Step 6: Final answer
x = 300,419.80
Related Problems
Find third proportional to 32,394 and 69,756
Half scale
Find third proportional to 129,576 and 279,024
Double scale
Find third proportional to 64,790 and 139,516
Similar ratio
Find third proportional to 97,182 and 209,268
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.