Finding the Fourth Proportional to 183.68, 275.64 and 80.99
Calculator
Solution
The fourth proportional to 183.68, 275.64 and 80.99 is: 121.54
Step by Step Solution
- Step 1: Write the proportion equation
183.68 : 275.64 = 80.99 : x - Step 2: Convert to fraction form
183.68/275.64 = 80.99/x - Step 3: Cross multiply
183.68x = 275.64 × 80.99 - Step 4: Simplify right side
183.68x = 22,324.08 - Step 5: Solve for x
x = 22,324.08/183.68 - Step 6: Final answer
x = 121.54
Related Problems
Find fourth proportional to 91.84, 137.82 and 40.50
Half scale
Find fourth proportional to 367.36, 551.28 and 161.98
Double scale
Find fourth proportional to 184.68, 277.14 and 81.99
Similar ratio
Find fourth proportional to 275.52, 413.46 and 121.49
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.