Finding the Fourth Proportional to 218.99, 328.84 and 97.49
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Solution
The fourth proportional to 218.99, 328.84 and 97.49 is: 146.39
Step by Step Solution
- Step 1: Write the proportion equation
218.99 : 328.84 = 97.49 : x - Step 2: Convert to fraction form
218.99/328.84 = 97.49/x - Step 3: Cross multiply
218.99x = 328.84 × 97.49 - Step 4: Simplify right side
218.99x = 32,059.19 - Step 5: Solve for x
x = 32,059.19/218.99 - Step 6: Final answer
x = 146.39
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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.