Finding the Third Proportional to 259,178.75 and 405,687.75
Calculator
Solution
The third proportional to 259,178.75 and 405,687.75 is: 635,015.60
Step by Step Solution
- Step 1: Write the proportion equation
259,178.75 : 405,687.75 = 405,687.75 : x - Step 2: Convert to fraction form
259,178.75/405,687.75 = 405,687.75/x - Step 3: Cross multiply
259,178.75x = 405,687.75 × 405,687.75 - Step 4: Simplify right side
259,178.75x = 164,582,550,500.06 - Step 5: Solve for x
x = 164,582,550,500.06/259,178.75 - Step 6: Final answer
x = 635,015.60
Related Problems
Find third proportional to 129,589.38 and 202,843.88
Half scale
Find third proportional to 518,357.50 and 811,375.50
Double scale
Find third proportional to 259,181 and 405,691
Similar ratio
Find third proportional to 388,768.13 and 608,531.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.