Finding the Fourth Proportional to 236.88, 326.79 and 153.99
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Solution
The fourth proportional to 236.88, 326.79 and 153.99 is: 212.44
Step by Step Solution
- Step 1: Write the proportion equation
236.88 : 326.79 = 153.99 : x - Step 2: Convert to fraction form
236.88/326.79 = 153.99/x - Step 3: Cross multiply
236.88x = 326.79 × 153.99 - Step 4: Simplify right side
236.88x = 50,322.39 - Step 5: Solve for x
x = 50,322.39/236.88 - Step 6: Final answer
x = 212.44
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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.