Finding the Fourth Proportional to 163.36, 227 and 161.32
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Solution
The fourth proportional to 163.36, 227 and 161.32 is: 224.17
Step by Step Solution
- Step 1: Write the proportion equation
163.36 : 227 = 161.32 : x - Step 2: Convert to fraction form
163.36/227 = 161.32/x - Step 3: Cross multiply
163.36x = 227 × 161.32 - Step 4: Simplify right side
163.36x = 36,619.64 - Step 5: Solve for x
x = 36,619.64/163.36 - Step 6: Final answer
x = 224.17
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.