Finding the Fourth Proportional to 166.36, 250.59 and 142.06
Calculator
Solution
The fourth proportional to 166.36, 250.59 and 142.06 is: 213.99
Step by Step Solution
- Step 1: Write the proportion equation
166.36 : 250.59 = 142.06 : x - Step 2: Convert to fraction form
166.36/250.59 = 142.06/x - Step 3: Cross multiply
166.36x = 250.59 × 142.06 - Step 4: Simplify right side
166.36x = 35,598.82 - Step 5: Solve for x
x = 35,598.82/166.36 - Step 6: Final answer
x = 213.99
Related Problems
Find fourth proportional to 83.18, 125.30 and 71.03
Half scale
Find fourth proportional to 332.72, 501.18 and 284.12
Double scale
Find fourth proportional to 167.36, 252.10 and 143.06
Similar ratio
Find fourth proportional to 249.54, 375.89 and 213.09
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.