Finding the Fourth Proportional to 344.54, 474.99 and 274.84
Calculator
Solution
The fourth proportional to 344.54, 474.99 and 274.84 is: 378.90
Step by Step Solution
- Step 1: Write the proportion equation
344.54 : 474.99 = 274.84 : x - Step 2: Convert to fraction form
344.54/474.99 = 274.84/x - Step 3: Cross multiply
344.54x = 474.99 × 274.84 - Step 4: Simplify right side
344.54x = 130,546.25 - Step 5: Solve for x
x = 130,546.25/344.54 - Step 6: Final answer
x = 378.90
Related Problems
Find fourth proportional to 172.27, 237.50 and 137.42
Half scale
Find fourth proportional to 689.08, 949.98 and 549.68
Double scale
Find fourth proportional to 345.54, 476.37 and 275.84
Similar ratio
Find fourth proportional to 516.81, 712.49 and 412.26
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.