Finding the Fourth Proportional to 378,176.70, 521,876.88 and 206,096.05
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Solution
The fourth proportional to 378,176.70, 521,876.88 and 206,096.05 is: 284,408.75
Step by Step Solution
- Step 1: Write the proportion equation
378,176.70 : 521,876.88 = 206,096.05 : x - Step 2: Convert to fraction form
378,176.70/521,876.88 = 206,096.05/x - Step 3: Cross multiply
378,176.70x = 521,876.88 × 206,096.05 - Step 4: Simplify right side
378,176.70x = 107,556,762,249.63 - Step 5: Solve for x
x = 107,556,762,249.63/378,176.70 - Step 6: Final answer
x = 284,408.75
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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.