Finding the Fourth Proportional to 201.15, 300.92 and 161.79
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Solution
The fourth proportional to 201.15, 300.92 and 161.79 is: 242.03
Step by Step Solution
- Step 1: Write the proportion equation
201.15 : 300.92 = 161.79 : x - Step 2: Convert to fraction form
201.15/300.92 = 161.79/x - Step 3: Cross multiply
201.15x = 300.92 × 161.79 - Step 4: Simplify right side
201.15x = 48,683.53 - Step 5: Solve for x
x = 48,683.53/201.15 - Step 6: Final answer
x = 242.03
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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.