Finding the Fourth Proportional to 378.91, 568.10 and 183.70
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Solution
The fourth proportional to 378.91, 568.10 and 183.70 is: 275.42
Step by Step Solution
- Step 1: Write the proportion equation
378.91 : 568.10 = 183.70 : x - Step 2: Convert to fraction form
378.91/568.10 = 183.70/x - Step 3: Cross multiply
378.91x = 568.10 × 183.70 - Step 4: Simplify right side
378.91x = 104,359.05 - Step 5: Solve for x
x = 104,359.05/378.91 - Step 6: Final answer
x = 275.42
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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.