Finding the Third Proportional to 278,013.75 and 605,923.50
Calculator
Solution
The third proportional to 278,013.75 and 605,923.50 is: 1,320,593.99
Step by Step Solution
- Step 1: Write the proportion equation
278,013.75 : 605,923.50 = 605,923.50 : x - Step 2: Convert to fraction form
278,013.75/605,923.50 = 605,923.50/x - Step 3: Cross multiply
278,013.75x = 605,923.50 × 605,923.50 - Step 4: Simplify right side
278,013.75x = 367,143,287,852.25 - Step 5: Solve for x
x = 367,143,287,852.25/278,013.75 - Step 6: Final answer
x = 1,320,593.99
Related Problems
Find third proportional to 139,006.88 and 302,961.75
Half scale
Find third proportional to 556,027.50 and 1,211,847
Double scale
Find third proportional to 278,016 and 605,928
Similar ratio
Find third proportional to 417,020.63 and 908,885.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.