Finding the Fourth Proportional to 516.40, 775.08 and 224.08
Calculator
Solution
The fourth proportional to 516.40, 775.08 and 224.08 is: 336.33
Step by Step Solution
- Step 1: Write the proportion equation
516.40 : 775.08 = 224.08 : x - Step 2: Convert to fraction form
516.40/775.08 = 224.08/x - Step 3: Cross multiply
516.40x = 775.08 × 224.08 - Step 4: Simplify right side
516.40x = 173,679.93 - Step 5: Solve for x
x = 173,679.93/516.40 - Step 6: Final answer
x = 336.33
Related Problems
Find fourth proportional to 258.20, 387.54 and 112.04
Half scale
Find fourth proportional to 1,032.80, 1,550.16 and 448.16
Double scale
Find fourth proportional to 517.40, 776.58 and 225.08
Similar ratio
Find fourth proportional to 774.60, 1,162.62 and 336.12
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.