Finding the Third Proportional to 261 and 667.50
Calculator
Solution
The third proportional to 261 and 667.50 is: 1,707.11
Step by Step Solution
- Step 1: Write the proportion equation
261 : 667.50 = 667.50 : x - Step 2: Convert to fraction form
261/667.50 = 667.50/x - Step 3: Cross multiply
261x = 667.50 × 667.50 - Step 4: Simplify right side
261x = 445,556.25 - Step 5: Solve for x
x = 445,556.25/261 - Step 6: Final answer
x = 1,707.11
Related Problems
Find third proportional to 130.50 and 333.75
Half scale
Find third proportional to 522 and 1,335
Double scale
Find third proportional to 263 and 673
Similar ratio
Find third proportional to 391.50 and 1,001.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.