Finding the Third Proportional to 126,720 and 268,920
Calculator
Solution
The third proportional to 126,720 and 268,920 is: 570,691.02
Step by Step Solution
- Step 1: Write the proportion equation
126,720 : 268,920 = 268,920 : x - Step 2: Convert to fraction form
126,720/268,920 = 268,920/x - Step 3: Cross multiply
126,720x = 268,920 × 268,920 - Step 4: Simplify right side
126,720x = 72,317,966,400 - Step 5: Solve for x
x = 72,317,966,400/126,720 - Step 6: Final answer
x = 570,691.02
Related Problems
Find third proportional to 63,360 and 134,460
Half scale
Find third proportional to 253,440 and 537,840
Double scale
Find third proportional to 126,722 and 268,924
Similar ratio
Find third proportional to 190,080 and 403,380
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.