Finding the Third Proportional to 355 and 879
Calculator
Solution
The third proportional to 355 and 879 is: 2,176.45
Step by Step Solution
- Step 1: Write the proportion equation
355 : 879 = 879 : x - Step 2: Convert to fraction form
355/879 = 879/x - Step 3: Cross multiply
355x = 879 × 879 - Step 4: Simplify right side
355x = 772,641 - Step 5: Solve for x
x = 772,641/355 - Step 6: Final answer
x = 2,176.45
Related Problems
Find third proportional to 177.50 and 439.50
Half scale
Find third proportional to 710 and 1,758
Double scale
Find third proportional to 357 and 884
Similar ratio
Find third proportional to 532.50 and 1,318.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.