Finding the Fourth Proportional to 217,651.20, 300,350.88 and 122,161.92
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Solution
The fourth proportional to 217,651.20, 300,350.88 and 122,161.92 is: 168,579.09
Step by Step Solution
- Step 1: Write the proportion equation
217,651.20 : 300,350.88 = 122,161.92 : x - Step 2: Convert to fraction form
217,651.20/300,350.88 = 122,161.92/x - Step 3: Cross multiply
217,651.20x = 300,350.88 × 122,161.92 - Step 4: Simplify right side
217,651.20x = 36,691,440,174.49 - Step 5: Solve for x
x = 36,691,440,174.49/217,651.20 - Step 6: Final answer
x = 168,579.09
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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.