Finding the Fourth Proportional to 108.84, 163.26 and 27.68
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Solution
The fourth proportional to 108.84, 163.26 and 27.68 is: 41.52
Step by Step Solution
- Step 1: Write the proportion equation
108.84 : 163.26 = 27.68 : x - Step 2: Convert to fraction form
108.84/163.26 = 27.68/x - Step 3: Cross multiply
108.84x = 163.26 × 27.68 - Step 4: Simplify right side
108.84x = 4,519.44 - Step 5: Solve for x
x = 4,519.44/108.84 - Step 6: Final answer
x = 41.52
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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.