Finding the Fourth Proportional to 227.26, 313.73 and 153.55
Calculator
Solution
The fourth proportional to 227.26, 313.73 and 153.55 is: 211.97
Step by Step Solution
- Step 1: Write the proportion equation
227.26 : 313.73 = 153.55 : x - Step 2: Convert to fraction form
227.26/313.73 = 153.55/x - Step 3: Cross multiply
227.26x = 313.73 × 153.55 - Step 4: Simplify right side
227.26x = 48,173.24 - Step 5: Solve for x
x = 48,173.24/227.26 - Step 6: Final answer
x = 211.97
Related Problems
Find fourth proportional to 113.63, 156.87 and 76.78
Half scale
Find fourth proportional to 454.52, 627.46 and 307.10
Double scale
Find fourth proportional to 228.26, 315.11 and 154.55
Similar ratio
Find fourth proportional to 340.89, 470.60 and 230.33
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.