Finding the Third Proportional to 217,720.50 and 320,175.75
Calculator
Solution
The third proportional to 217,720.50 and 320,175.75 is: 470,844.55
Step by Step Solution
- Step 1: Write the proportion equation
217,720.50 : 320,175.75 = 320,175.75 : x - Step 2: Convert to fraction form
217,720.50/320,175.75 = 320,175.75/x - Step 3: Cross multiply
217,720.50x = 320,175.75 × 320,175.75 - Step 4: Simplify right side
217,720.50x = 102,512,510,888.06 - Step 5: Solve for x
x = 102,512,510,888.06/217,720.50 - Step 6: Final answer
x = 470,844.55
Related Problems
Find third proportional to 108,860.25 and 160,087.88
Half scale
Find third proportional to 435,441 and 640,351.50
Double scale
Find third proportional to 217,723 and 320,179
Similar ratio
Find third proportional to 326,580.75 and 480,263.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.