Finding the Fourth Proportional to 151.23, 226.80 and 42.99
Calculator
Solution
The fourth proportional to 151.23, 226.80 and 42.99 is: 64.47
Step by Step Solution
- Step 1: Write the proportion equation
151.23 : 226.80 = 42.99 : x - Step 2: Convert to fraction form
151.23/226.80 = 42.99/x - Step 3: Cross multiply
151.23x = 226.80 × 42.99 - Step 4: Simplify right side
151.23x = 9,750.13 - Step 5: Solve for x
x = 9,750.13/151.23 - Step 6: Final answer
x = 64.47
Related Problems
Find fourth proportional to 75.62, 113.40 and 21.50
Half scale
Find fourth proportional to 302.46, 453.60 and 85.98
Double scale
Find fourth proportional to 152.23, 228.30 and 43.99
Similar ratio
Find fourth proportional to 226.85, 340.20 and 64.49
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.