Finding the Fourth Proportional to 366.87, 549.97 and 135.70
Calculator
Solution
The fourth proportional to 366.87, 549.97 and 135.70 is: 203.42
Step by Step Solution
- Step 1: Write the proportion equation
366.87 : 549.97 = 135.70 : x - Step 2: Convert to fraction form
366.87/549.97 = 135.70/x - Step 3: Cross multiply
366.87x = 549.97 × 135.70 - Step 4: Simplify right side
366.87x = 74,631.28 - Step 5: Solve for x
x = 74,631.28/366.87 - Step 6: Final answer
x = 203.42
Related Problems
Find fourth proportional to 183.44, 274.98 and 67.85
Half scale
Find fourth proportional to 733.75, 1,099.94 and 271.40
Double scale
Find fourth proportional to 367.87, 551.47 and 136.70
Similar ratio
Find fourth proportional to 550.31, 824.95 and 203.55
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.