Finding the Fourth Proportional to 229.26, 316.38 and 163.68
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Solution
The fourth proportional to 229.26, 316.38 and 163.68 is: 225.88
Step by Step Solution
- Step 1: Write the proportion equation
229.26 : 316.38 = 163.68 : x - Step 2: Convert to fraction form
229.26/316.38 = 163.68/x - Step 3: Cross multiply
229.26x = 316.38 × 163.68 - Step 4: Simplify right side
229.26x = 51,785.08 - Step 5: Solve for x
x = 51,785.08/229.26 - Step 6: Final answer
x = 225.88
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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.