Finding the Fourth Proportional to 326.23, 489.44 and 163.92
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Solution
The fourth proportional to 326.23, 489.44 and 163.92 is: 245.94
Step by Step Solution
- Step 1: Write the proportion equation
326.23 : 489.44 = 163.92 : x - Step 2: Convert to fraction form
326.23/489.44 = 163.92/x - Step 3: Cross multiply
326.23x = 489.44 × 163.92 - Step 4: Simplify right side
326.23x = 80,231.25 - Step 5: Solve for x
x = 80,231.25/326.23 - Step 6: Final answer
x = 245.94
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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.