Finding the Fourth Proportional to 163.26, 223.97 and 161.87
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Solution
The fourth proportional to 163.26, 223.97 and 161.87 is: 222.05
Step by Step Solution
- Step 1: Write the proportion equation
163.26 : 223.97 = 161.87 : x - Step 2: Convert to fraction form
163.26/223.97 = 161.87/x - Step 3: Cross multiply
163.26x = 223.97 × 161.87 - Step 4: Simplify right side
163.26x = 36,252.09 - Step 5: Solve for x
x = 36,252.09/163.26 - Step 6: Final answer
x = 222.05
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.