Finding the Third Proportional to 216,517.50 and 311,883.75
Calculator
Solution
The third proportional to 216,517.50 and 311,883.75 is: 449,254.56
Step by Step Solution
- Step 1: Write the proportion equation
216,517.50 : 311,883.75 = 311,883.75 : x - Step 2: Convert to fraction form
216,517.50/311,883.75 = 311,883.75/x - Step 3: Cross multiply
216,517.50x = 311,883.75 × 311,883.75 - Step 4: Simplify right side
216,517.50x = 97,271,473,514.06 - Step 5: Solve for x
x = 97,271,473,514.06/216,517.50 - Step 6: Final answer
x = 449,254.56
Related Problems
Find third proportional to 108,258.75 and 155,941.88
Half scale
Find third proportional to 433,035 and 623,767.50
Double scale
Find third proportional to 216,520 and 311,887
Similar ratio
Find third proportional to 324,776.25 and 467,825.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.