Finding the Fourth Proportional to 395.95, 594.01 and 122.08
Calculator
Solution
The fourth proportional to 395.95, 594.01 and 122.08 is: 183.15
Step by Step Solution
- Step 1: Write the proportion equation
395.95 : 594.01 = 122.08 : x - Step 2: Convert to fraction form
395.95/594.01 = 122.08/x - Step 3: Cross multiply
395.95x = 594.01 × 122.08 - Step 4: Simplify right side
395.95x = 72,516.74 - Step 5: Solve for x
x = 72,516.74/395.95 - Step 6: Final answer
x = 183.15
Related Problems
Find fourth proportional to 197.98, 297.01 and 61.04
Half scale
Find fourth proportional to 791.90, 1,188.02 and 244.16
Double scale
Find fourth proportional to 396.95, 595.51 and 123.08
Similar ratio
Find fourth proportional to 593.93, 891.02 and 183.12
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.