Finding the Fourth Proportional to 378.48, 568.44 and 329.88
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Solution
The fourth proportional to 378.48, 568.44 and 329.88 is: 495.45
Step by Step Solution
- Step 1: Write the proportion equation
378.48 : 568.44 = 329.88 : x - Step 2: Convert to fraction form
378.48/568.44 = 329.88/x - Step 3: Cross multiply
378.48x = 568.44 × 329.88 - Step 4: Simplify right side
378.48x = 187,516.99 - Step 5: Solve for x
x = 187,516.99/378.48 - Step 6: Final answer
x = 495.45
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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.