Finding the Fourth Proportional to 297.12, 446.07 and 228.70
Calculator
Solution
The fourth proportional to 297.12, 446.07 and 228.70 is: 343.34
Step by Step Solution
- Step 1: Write the proportion equation
297.12 : 446.07 = 228.70 : x - Step 2: Convert to fraction form
297.12/446.07 = 228.70/x - Step 3: Cross multiply
297.12x = 446.07 × 228.70 - Step 4: Simplify right side
297.12x = 102,014.36 - Step 5: Solve for x
x = 102,014.36/297.12 - Step 6: Final answer
x = 343.34
Related Problems
Find fourth proportional to 148.56, 223.04 and 114.35
Half scale
Find fourth proportional to 594.25, 892.14 and 457.39
Double scale
Find fourth proportional to 298.12, 447.57 and 229.70
Similar ratio
Find fourth proportional to 445.69, 669.11 and 343.04
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.