Finding the Third Proportional to 234.50 and 485
Calculator
Solution
The third proportional to 234.50 and 485 is: 1,003.09
Step by Step Solution
- Step 1: Write the proportion equation
234.50 : 485 = 485 : x - Step 2: Convert to fraction form
234.50/485 = 485/x - Step 3: Cross multiply
234.50x = 485 × 485 - Step 4: Simplify right side
234.50x = 235,225 - Step 5: Solve for x
x = 235,225/234.50 - Step 6: Final answer
x = 1,003.09
Related Problems
Find third proportional to 117.25 and 242.50
Half scale
Find third proportional to 469 and 970
Double scale
Find third proportional to 237 and 489
Similar ratio
Find third proportional to 351.75 and 727.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.