Finding the Fourth Proportional to 163.68, 226.08 and 126.96
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Solution
The fourth proportional to 163.68, 226.08 and 126.96 is: 175.36
Step by Step Solution
- Step 1: Write the proportion equation
163.68 : 226.08 = 126.96 : x - Step 2: Convert to fraction form
163.68/226.08 = 126.96/x - Step 3: Cross multiply
163.68x = 226.08 × 126.96 - Step 4: Simplify right side
163.68x = 28,703.12 - Step 5: Solve for x
x = 28,703.12/163.68 - Step 6: Final answer
x = 175.36
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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.