Finding the Third Proportional to 213,419.81 and 321,537.09
Calculator
Solution
The third proportional to 213,419.81 and 321,537.09 is: 484,425.98
Step by Step Solution
- Step 1: Write the proportion equation
213,419.81 : 321,537.09 = 321,537.09 : x - Step 2: Convert to fraction form
213,419.81/321,537.09 = 321,537.09/x - Step 3: Cross multiply
213,419.81x = 321,537.09 × 321,537.09 - Step 4: Simplify right side
213,419.81x = 103,386,102,657.20 - Step 5: Solve for x
x = 103,386,102,657.20/213,419.81 - Step 6: Final answer
x = 484,425.98
Related Problems
Find third proportional to 106,709.91 and 160,768.55
Half scale
Find third proportional to 426,839.63 and 643,074.19
Double scale
Find third proportional to 213,422 and 321,540
Similar ratio
Find third proportional to 320,129.72 and 482,305.64
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.