Finding the Fourth Proportional to 201.11, 301.74 and 98.38
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Solution
The fourth proportional to 201.11, 301.74 and 98.38 is: 147.61
Step by Step Solution
- Step 1: Write the proportion equation
201.11 : 301.74 = 98.38 : x - Step 2: Convert to fraction form
201.11/301.74 = 98.38/x - Step 3: Cross multiply
201.11x = 301.74 × 98.38 - Step 4: Simplify right side
201.11x = 29,685.19 - Step 5: Solve for x
x = 29,685.19/201.11 - Step 6: Final answer
x = 147.61
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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.