Finding the Third Proportional to 143,085 and 221,358.75
Calculator
Solution
The third proportional to 143,085 and 221,358.75 is: 342,451.66
Step by Step Solution
- Step 1: Write the proportion equation
143,085 : 221,358.75 = 221,358.75 : x - Step 2: Convert to fraction form
143,085/221,358.75 = 221,358.75/x - Step 3: Cross multiply
143,085x = 221,358.75 × 221,358.75 - Step 4: Simplify right side
143,085x = 48,999,696,201.56 - Step 5: Solve for x
x = 48,999,696,201.56/143,085 - Step 6: Final answer
x = 342,451.66
Related Problems
Find third proportional to 71,542.50 and 110,679.38
Half scale
Find third proportional to 286,170 and 442,717.50
Double scale
Find third proportional to 143,087 and 221,362
Similar ratio
Find third proportional to 214,627.50 and 332,038.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.