Finding the Fourth Proportional to 378.97, 568.44 and 356.42
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Solution
The fourth proportional to 378.97, 568.44 and 356.42 is: 534.62
Step by Step Solution
- Step 1: Write the proportion equation
378.97 : 568.44 = 356.42 : x - Step 2: Convert to fraction form
378.97/568.44 = 356.42/x - Step 3: Cross multiply
378.97x = 568.44 × 356.42 - Step 4: Simplify right side
378.97x = 202,604.81 - Step 5: Solve for x
x = 202,604.81/378.97 - Step 6: Final answer
x = 534.62
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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.