Finding the Fourth Proportional to 287,227.12, 396,387.32 and 159,902.68
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Solution
The fourth proportional to 287,227.12, 396,387.32 and 159,902.68 is: 220,673.43
Step by Step Solution
- Step 1: Write the proportion equation
287,227.12 : 396,387.32 = 159,902.68 : x - Step 2: Convert to fraction form
287,227.12/396,387.32 = 159,902.68/x - Step 3: Cross multiply
287,227.12x = 396,387.32 × 159,902.68 - Step 4: Simplify right side
287,227.12x = 63,383,394,786.02 - Step 5: Solve for x
x = 63,383,394,786.02/287,227.12 - Step 6: Final answer
x = 220,673.43
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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.