Finding the Third Proportional to 207 and 339.50
Calculator
Solution
The third proportional to 207 and 339.50 is: 556.81
Step by Step Solution
- Step 1: Write the proportion equation
207 : 339.50 = 339.50 : x - Step 2: Convert to fraction form
207/339.50 = 339.50/x - Step 3: Cross multiply
207x = 339.50 × 339.50 - Step 4: Simplify right side
207x = 115,260.25 - Step 5: Solve for x
x = 115,260.25/207 - Step 6: Final answer
x = 556.81
Related Problems
Find third proportional to 103.50 and 169.75
Half scale
Find third proportional to 414 and 679
Double scale
Find third proportional to 209 and 343
Similar ratio
Find third proportional to 310.50 and 509.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.