Finding the Fourth Proportional to 287,896.26, 397,296.82 and 160,571.94
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Solution
The fourth proportional to 287,896.26, 397,296.82 and 160,571.94 is: 221,589.27
Step by Step Solution
- Step 1: Write the proportion equation
287,896.26 : 397,296.82 = 160,571.94 : x - Step 2: Convert to fraction form
287,896.26/397,296.82 = 160,571.94/x - Step 3: Cross multiply
287,896.26x = 397,296.82 × 160,571.94 - Step 4: Simplify right side
287,896.26x = 63,794,721,143.23 - Step 5: Solve for x
x = 63,794,721,143.23/287,896.26 - Step 6: Final answer
x = 221,589.27
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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.