Finding the Fourth Proportional to 169.26, 253.79 and 114.99
Calculator
Solution
The fourth proportional to 169.26, 253.79 and 114.99 is: 172.41
Step by Step Solution
- Step 1: Write the proportion equation
169.26 : 253.79 = 114.99 : x - Step 2: Convert to fraction form
169.26/253.79 = 114.99/x - Step 3: Cross multiply
169.26x = 253.79 × 114.99 - Step 4: Simplify right side
169.26x = 29,182.56 - Step 5: Solve for x
x = 29,182.56/169.26 - Step 6: Final answer
x = 172.41
Related Problems
Find fourth proportional to 84.63, 126.89 and 57.49
Half scale
Find fourth proportional to 338.52, 507.57 and 229.98
Double scale
Find fourth proportional to 170.26, 255.29 and 115.99
Similar ratio
Find fourth proportional to 253.89, 380.68 and 172.48
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.