Finding the Third Proportional to 138,660.75 and 299,454.75
Calculator
Solution
The third proportional to 138,660.75 and 299,454.75 is: 646,708.94
Step by Step Solution
- Step 1: Write the proportion equation
138,660.75 : 299,454.75 = 299,454.75 : x - Step 2: Convert to fraction form
138,660.75/299,454.75 = 299,454.75/x - Step 3: Cross multiply
138,660.75x = 299,454.75 × 299,454.75 - Step 4: Simplify right side
138,660.75x = 89,673,147,297.56 - Step 5: Solve for x
x = 89,673,147,297.56/138,660.75 - Step 6: Final answer
x = 646,708.94
Related Problems
Find third proportional to 69,330.38 and 149,727.38
Half scale
Find third proportional to 277,321.50 and 598,909.50
Double scale
Find third proportional to 138,663 and 299,459
Similar ratio
Find third proportional to 207,991.13 and 449,182.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.