Finding the Fourth Proportional to 201.18, 301.79 and 98.49
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Solution
The fourth proportional to 201.18, 301.79 and 98.49 is: 147.74
Step by Step Solution
- Step 1: Write the proportion equation
201.18 : 301.79 = 98.49 : x - Step 2: Convert to fraction form
201.18/301.79 = 98.49/x - Step 3: Cross multiply
201.18x = 301.79 × 98.49 - Step 4: Simplify right side
201.18x = 29,723.30 - Step 5: Solve for x
x = 29,723.30/201.18 - Step 6: Final answer
x = 147.74
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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.