Finding the Third Proportional to 378 and 579
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Solution
The third proportional to 378 and 579 is: 886.88
Step by Step Solution
- Step 1: Write the proportion equation
378 : 579 = 579 : x - Step 2: Convert to fraction form
378/579 = 579/x - Step 3: Cross multiply
378x = 579 × 579 - Step 4: Simplify right side
378x = 335,241 - Step 5: Solve for x
x = 335,241/378 - Step 6: Final answer
x = 886.88
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Why These Related Problems?
These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.