Finding the Fourth Proportional to 218.10, 327.09 and 63.99
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Solution
The fourth proportional to 218.10, 327.09 and 63.99 is: 95.97
Step by Step Solution
- Step 1: Write the proportion equation
218.10 : 327.09 = 63.99 : x - Step 2: Convert to fraction form
218.10/327.09 = 63.99/x - Step 3: Cross multiply
218.10x = 327.09 × 63.99 - Step 4: Simplify right side
218.10x = 20,930.49 - Step 5: Solve for x
x = 20,930.49/218.10 - Step 6: Final answer
x = 95.97
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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.