Finding the Third Proportional to 58 and 111.75
Calculator
Solution
The third proportional to 58 and 111.75 is: 215.31
Step by Step Solution
- Step 1: Write the proportion equation
58 : 111.75 = 111.75 : x - Step 2: Convert to fraction form
58/111.75 = 111.75/x - Step 3: Cross multiply
58x = 111.75 × 111.75 - Step 4: Simplify right side
58x = 12,488.06 - Step 5: Solve for x
x = 12,488.06/58 - Step 6: Final answer
x = 215.31
Related Problems
Find third proportional to 29 and 55.88
Half scale
Find third proportional to 116 and 223.50
Double scale
Find third proportional to 60 and 116
Similar ratio
Find third proportional to 87 and 167.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.