Finding the Third Proportional to 421.50 and 940
Calculator
Solution
The third proportional to 421.50 and 940 is: 2,096.32
Step by Step Solution
- Step 1: Write the proportion equation
421.50 : 940 = 940 : x - Step 2: Convert to fraction form
421.50/940 = 940/x - Step 3: Cross multiply
421.50x = 940 × 940 - Step 4: Simplify right side
421.50x = 883,600 - Step 5: Solve for x
x = 883,600/421.50 - Step 6: Final answer
x = 2,096.32
Related Problems
Find third proportional to 210.75 and 470
Half scale
Find third proportional to 843 and 1,880
Double scale
Find third proportional to 424 and 944
Similar ratio
Find third proportional to 632.25 and 1,410
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.