Finding the Third Proportional to 200 and 430
Calculator
Solution
The third proportional to 200 and 430 is: 924.50
Step by Step Solution
- Step 1: Write the proportion equation
200 : 430 = 430 : x - Step 2: Convert to fraction form
200/430 = 430/x - Step 3: Cross multiply
200x = 430 × 430 - Step 4: Simplify right side
200x = 184,900 - Step 5: Solve for x
x = 184,900/200 - Step 6: Final answer
x = 924.50
Related Problems
Find third proportional to 100 and 215
Half scale
Find third proportional to 400 and 860
Double scale
Find third proportional to 202 and 434
Similar ratio
Find third proportional to 300 and 645
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.