Finding the Fourth Proportional to 374.41, 561.66 and 130.99
Calculator
Solution
The fourth proportional to 374.41, 561.66 and 130.99 is: 196.50
Step by Step Solution
- Step 1: Write the proportion equation
374.41 : 561.66 = 130.99 : x - Step 2: Convert to fraction form
374.41/561.66 = 130.99/x - Step 3: Cross multiply
374.41x = 561.66 × 130.99 - Step 4: Simplify right side
374.41x = 73,571.84 - Step 5: Solve for x
x = 73,571.84/374.41 - Step 6: Final answer
x = 196.50
Related Problems
Find fourth proportional to 187.21, 280.83 and 65.50
Half scale
Find fourth proportional to 748.82, 1,123.32 and 261.98
Double scale
Find fourth proportional to 375.41, 563.16 and 131.99
Similar ratio
Find fourth proportional to 561.62, 842.49 and 196.49
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.