Finding the Fourth Proportional to 294.09, 405.57 and 188.99
Calculator
Solution
The fourth proportional to 294.09, 405.57 and 188.99 is: 260.62
Step by Step Solution
- Step 1: Write the proportion equation
294.09 : 405.57 = 188.99 : x - Step 2: Convert to fraction form
294.09/405.57 = 188.99/x - Step 3: Cross multiply
294.09x = 405.57 × 188.99 - Step 4: Simplify right side
294.09x = 76,645.70 - Step 5: Solve for x
x = 76,645.70/294.09 - Step 6: Final answer
x = 260.62
Related Problems
Find fourth proportional to 147.04, 202.78 and 94.49
Half scale
Find fourth proportional to 588.17, 811.13 and 377.97
Double scale
Find fourth proportional to 295.09, 406.94 and 189.99
Similar ratio
Find fourth proportional to 441.13, 608.35 and 283.48
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.