Finding the Fourth Proportional to 163.26, 244.26 and 115.20
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Solution
The fourth proportional to 163.26, 244.26 and 115.20 is: 172.36
Step by Step Solution
- Step 1: Write the proportion equation
163.26 : 244.26 = 115.20 : x - Step 2: Convert to fraction form
163.26/244.26 = 115.20/x - Step 3: Cross multiply
163.26x = 244.26 × 115.20 - Step 4: Simplify right side
163.26x = 28,138.75 - Step 5: Solve for x
x = 28,138.75/163.26 - Step 6: Final answer
x = 172.36
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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.