Finding the Fourth Proportional to 287,891.91, 397,291.41 and 160,575.75
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Solution
The fourth proportional to 287,891.91, 397,291.41 and 160,575.75 is: 221,594.86
Step by Step Solution
- Step 1: Write the proportion equation
287,891.91 : 397,291.41 = 160,575.75 : x - Step 2: Convert to fraction form
287,891.91/397,291.41 = 160,575.75/x - Step 3: Cross multiply
287,891.91x = 397,291.41 × 160,575.75 - Step 4: Simplify right side
287,891.91x = 63,795,366,129.31 - Step 5: Solve for x
x = 63,795,366,129.31/287,891.91 - Step 6: Final answer
x = 221,594.86
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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.