Finding the Fourth Proportional to 378.92, 522.99 and 246.14
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Solution
The fourth proportional to 378.92, 522.99 and 246.14 is: 339.72
Step by Step Solution
- Step 1: Write the proportion equation
378.92 : 522.99 = 246.14 : x - Step 2: Convert to fraction form
378.92/522.99 = 246.14/x - Step 3: Cross multiply
378.92x = 522.99 × 246.14 - Step 4: Simplify right side
378.92x = 128,728.10 - Step 5: Solve for x
x = 128,728.10/378.92 - Step 6: Final answer
x = 339.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.