Finding the Fourth Proportional to 378.36, 567.33 and 161.95
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Solution
The fourth proportional to 378.36, 567.33 and 161.95 is: 242.84
Step by Step Solution
- Step 1: Write the proportion equation
378.36 : 567.33 = 161.95 : x - Step 2: Convert to fraction form
378.36/567.33 = 161.95/x - Step 3: Cross multiply
378.36x = 567.33 × 161.95 - Step 4: Simplify right side
378.36x = 91,879.09 - Step 5: Solve for x
x = 91,879.09/378.36 - Step 6: Final answer
x = 242.84
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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.