Finding the Fourth Proportional to 218.92, 327.70 and 163.75
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Solution
The fourth proportional to 218.92, 327.70 and 163.75 is: 245.11
Step by Step Solution
- Step 1: Write the proportion equation
218.92 : 327.70 = 163.75 : x - Step 2: Convert to fraction form
218.92/327.70 = 163.75/x - Step 3: Cross multiply
218.92x = 327.70 × 163.75 - Step 4: Simplify right side
218.92x = 53,660.06 - Step 5: Solve for x
x = 53,660.06/218.92 - Step 6: Final answer
x = 245.11
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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.