Finding the Fourth Proportional to 188.99, 260.62 and 122.62
Calculator
Solution
The fourth proportional to 188.99, 260.62 and 122.62 is: 169.09
Step by Step Solution
- Step 1: Write the proportion equation
188.99 : 260.62 = 122.62 : x - Step 2: Convert to fraction form
188.99/260.62 = 122.62/x - Step 3: Cross multiply
188.99x = 260.62 × 122.62 - Step 4: Simplify right side
188.99x = 31,956.94 - Step 5: Solve for x
x = 31,956.94/188.99 - Step 6: Final answer
x = 169.09
Related Problems
Find fourth proportional to 94.49, 130.31 and 61.31
Half scale
Find fourth proportional to 377.98, 521.24 and 245.24
Double scale
Find fourth proportional to 189.99, 262 and 123.62
Similar ratio
Find fourth proportional to 283.48, 390.93 and 183.93
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.