Finding the Fourth Proportional to 298.44, 447.44 and 115.70
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Solution
The fourth proportional to 298.44, 447.44 and 115.70 is: 173.46
Step by Step Solution
- Step 1: Write the proportion equation
298.44 : 447.44 = 115.70 : x - Step 2: Convert to fraction form
298.44/447.44 = 115.70/x - Step 3: Cross multiply
298.44x = 447.44 × 115.70 - Step 4: Simplify right side
298.44x = 51,765.99 - Step 5: Solve for x
x = 51,765.99/298.44 - Step 6: Final answer
x = 173.46
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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.