Finding the Third Proportional to 218,310.19 and 326,121.19
Calculator
Solution
The third proportional to 218,310.19 and 326,121.19 is: 487,173.92
Step by Step Solution
- Step 1: Write the proportion equation
218,310.19 : 326,121.19 = 326,121.19 : x - Step 2: Convert to fraction form
218,310.19/326,121.19 = 326,121.19/x - Step 3: Cross multiply
218,310.19x = 326,121.19 × 326,121.19 - Step 4: Simplify right side
218,310.19x = 106,355,028,936.41 - Step 5: Solve for x
x = 106,355,028,936.41/218,310.19 - Step 6: Final answer
x = 487,173.92
Related Problems
Find third proportional to 109,155.09 and 163,060.59
Half scale
Find third proportional to 436,620.38 and 652,242.38
Double scale
Find third proportional to 218,312 and 326,124
Similar ratio
Find third proportional to 327,465.28 and 489,181.78
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.