Finding the Fourth Proportional to 163.20, 244.64 and 108.96
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Solution
The fourth proportional to 163.20, 244.64 and 108.96 is: 163.33
Step by Step Solution
- Step 1: Write the proportion equation
163.20 : 244.64 = 108.96 : x - Step 2: Convert to fraction form
163.20/244.64 = 108.96/x - Step 3: Cross multiply
163.20x = 244.64 × 108.96 - Step 4: Simplify right side
163.20x = 26,655.97 - Step 5: Solve for x
x = 26,655.97/163.20 - Step 6: Final answer
x = 163.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.