Finding the Fourth Proportional to 198.85, 273.97 and 163.99
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Solution
The fourth proportional to 198.85, 273.97 and 163.99 is: 225.93
Step by Step Solution
- Step 1: Write the proportion equation
198.85 : 273.97 = 163.99 : x - Step 2: Convert to fraction form
198.85/273.97 = 163.99/x - Step 3: Cross multiply
198.85x = 273.97 × 163.99 - Step 4: Simplify right side
198.85x = 44,926.97 - Step 5: Solve for x
x = 44,926.97/198.85 - Step 6: Final answer
x = 225.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.