Finding the Fourth Proportional to 379,163.96, 523,249.84 and 215,812.49
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Solution
The fourth proportional to 379,163.96, 523,249.84 and 215,812.49 is: 297,823.27
Step by Step Solution
- Step 1: Write the proportion equation
379,163.96 : 523,249.84 = 215,812.49 : x - Step 2: Convert to fraction form
379,163.96/523,249.84 = 215,812.49/x - Step 3: Cross multiply
379,163.96x = 523,249.84 × 215,812.49 - Step 4: Simplify right side
379,163.96x = 112,923,849,668.91 - Step 5: Solve for x
x = 112,923,849,668.91/379,163.96 - Step 6: Final answer
x = 297,823.27
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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.