Finding the Fourth Proportional to 163.26, 244.91 and 71.96
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Solution
The fourth proportional to 163.26, 244.91 and 71.96 is: 107.94
Step by Step Solution
- Step 1: Write the proportion equation
163.26 : 244.91 = 71.96 : x - Step 2: Convert to fraction form
163.26/244.91 = 71.96/x - Step 3: Cross multiply
163.26x = 244.91 × 71.96 - Step 4: Simplify right side
163.26x = 17,622.68 - Step 5: Solve for x
x = 17,622.68/163.26 - Step 6: Final answer
x = 107.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.