Finding the Third Proportional to 358 and 372
Calculator
Solution
The third proportional to 358 and 372 is: 386.55
Step by Step Solution
- Step 1: Write the proportion equation
358 : 372 = 372 : x - Step 2: Convert to fraction form
358/372 = 372/x - Step 3: Cross multiply
358x = 372 × 372 - Step 4: Simplify right side
358x = 138,384 - Step 5: Solve for x
x = 138,384/358 - Step 6: Final answer
x = 386.55
Related Problems
Find third proportional to 179 and 186
Half scale
Find third proportional to 716 and 744
Double scale
Find third proportional to 360 and 374
Similar ratio
Find third proportional to 537 and 558
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.