Finding the Fourth Proportional to 397,717.26, 548,849.90 and 218,869.26
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Solution
The fourth proportional to 397,717.26, 548,849.90 and 218,869.26 is: 302,039.62
Step by Step Solution
- Step 1: Write the proportion equation
397,717.26 : 548,849.90 = 218,869.26 : x - Step 2: Convert to fraction form
397,717.26/548,849.90 = 218,869.26/x - Step 3: Cross multiply
397,717.26x = 548,849.90 × 218,869.26 - Step 4: Simplify right side
397,717.26x = 120,126,371,464.07 - Step 5: Solve for x
x = 120,126,371,464.07/397,717.26 - Step 6: Final answer
x = 302,039.62
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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.