Finding the Third Proportional to 221,959.50 and 489,163.50
Calculator
Solution
The third proportional to 221,959.50 and 489,163.50 is: 1,078,038.70
Step by Step Solution
- Step 1: Write the proportion equation
221,959.50 : 489,163.50 = 489,163.50 : x - Step 2: Convert to fraction form
221,959.50/489,163.50 = 489,163.50/x - Step 3: Cross multiply
221,959.50x = 489,163.50 × 489,163.50 - Step 4: Simplify right side
221,959.50x = 239,280,929,732.25 - Step 5: Solve for x
x = 239,280,929,732.25/221,959.50 - Step 6: Final answer
x = 1,078,038.70
Related Problems
Find third proportional to 110,979.75 and 244,581.75
Half scale
Find third proportional to 443,919 and 978,327
Double scale
Find third proportional to 221,962 and 489,168
Similar ratio
Find third proportional to 332,939.25 and 733,745.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.