Finding the Fourth Proportional to 361.92, 543.09 and 358.99
Calculator
Solution
The fourth proportional to 361.92, 543.09 and 358.99 is: 538.68
Step by Step Solution
- Step 1: Write the proportion equation
361.92 : 543.09 = 358.99 : x - Step 2: Convert to fraction form
361.92/543.09 = 358.99/x - Step 3: Cross multiply
361.92x = 543.09 × 358.99 - Step 4: Simplify right side
361.92x = 194,960.27 - Step 5: Solve for x
x = 194,960.27/361.92 - Step 6: Final answer
x = 538.68
Related Problems
Find fourth proportional to 180.96, 271.54 and 179.49
Half scale
Find fourth proportional to 723.85, 1,086.18 and 717.97
Double scale
Find fourth proportional to 362.92, 544.59 and 359.99
Similar ratio
Find fourth proportional to 542.88, 814.63 and 538.48
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.