Finding the Fourth Proportional to 378.11, 567.18 and 161.54
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Solution
The fourth proportional to 378.11, 567.18 and 161.54 is: 242.32
Step by Step Solution
- Step 1: Write the proportion equation
378.11 : 567.18 = 161.54 : x - Step 2: Convert to fraction form
378.11/567.18 = 161.54/x - Step 3: Cross multiply
378.11x = 567.18 × 161.54 - Step 4: Simplify right side
378.11x = 91,622.26 - Step 5: Solve for x
x = 91,622.26/378.11 - Step 6: Final answer
x = 242.32
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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.