Finding the Fourth Proportional to 163.92, 245.88 and 113.79
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Solution
The fourth proportional to 163.92, 245.88 and 113.79 is: 170.68
Step by Step Solution
- Step 1: Write the proportion equation
163.92 : 245.88 = 113.79 : x - Step 2: Convert to fraction form
163.92/245.88 = 113.79/x - Step 3: Cross multiply
163.92x = 245.88 × 113.79 - Step 4: Simplify right side
163.92x = 27,979.11 - Step 5: Solve for x
x = 27,979.11/163.92 - Step 6: Final answer
x = 170.68
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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.