Finding the Third Proportional to 201,280 and 411,300
Calculator
Solution
The third proportional to 201,280 and 411,300 is: 840,459.51
Step by Step Solution
- Step 1: Write the proportion equation
201,280 : 411,300 = 411,300 : x - Step 2: Convert to fraction form
201,280/411,300 = 411,300/x - Step 3: Cross multiply
201,280x = 411,300 × 411,300 - Step 4: Simplify right side
201,280x = 169,167,690,000 - Step 5: Solve for x
x = 169,167,690,000/201,280 - Step 6: Final answer
x = 840,459.51
Related Problems
Find third proportional to 100,640 and 205,650
Half scale
Find third proportional to 402,560 and 822,600
Double scale
Find third proportional to 201,282 and 411,304
Similar ratio
Find third proportional to 301,920 and 616,950
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.