Finding the Fourth Proportional to 229.18, 316.36 and 163.68
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Solution
The fourth proportional to 229.18, 316.36 and 163.68 is: 225.94
Step by Step Solution
- Step 1: Write the proportion equation
229.18 : 316.36 = 163.68 : x - Step 2: Convert to fraction form
229.18/316.36 = 163.68/x - Step 3: Cross multiply
229.18x = 316.36 × 163.68 - Step 4: Simplify right side
229.18x = 51,781.80 - Step 5: Solve for x
x = 51,781.80/229.18 - Step 6: Final answer
x = 225.94
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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.