Finding the Third Proportional to 194,380 and 317,405
Calculator
Solution
The third proportional to 194,380 and 317,405 is: 518,293.72
Step by Step Solution
- Step 1: Write the proportion equation
194,380 : 317,405 = 317,405 : x - Step 2: Convert to fraction form
194,380/317,405 = 317,405/x - Step 3: Cross multiply
194,380x = 317,405 × 317,405 - Step 4: Simplify right side
194,380x = 100,745,934,025 - Step 5: Solve for x
x = 100,745,934,025/194,380 - Step 6: Final answer
x = 518,293.72
Related Problems
Find third proportional to 97,190 and 158,702.50
Half scale
Find third proportional to 388,760 and 634,810
Double scale
Find third proportional to 194,382 and 317,408
Similar ratio
Find third proportional to 291,570 and 476,107.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.