Finding the Fourth Proportional to 231,622.87, 319,594.11 and 145,531.97
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Solution
The fourth proportional to 231,622.87, 319,594.11 and 145,531.97 is: 200,805.56
Step by Step Solution
- Step 1: Write the proportion equation
231,622.87 : 319,594.11 = 145,531.97 : x - Step 2: Convert to fraction form
231,622.87/319,594.11 = 145,531.97/x - Step 3: Cross multiply
231,622.87x = 319,594.11 × 145,531.97 - Step 4: Simplify right side
231,622.87x = 46,511,160,428.70 - Step 5: Solve for x
x = 46,511,160,428.70/231,622.87 - Step 6: Final answer
x = 200,805.56
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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.