Finding the Fourth Proportional to 275,299.09, 379,915.33 and 154,442.97
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Solution
The fourth proportional to 275,299.09, 379,915.33 and 154,442.97 is: 213,132.75
Step by Step Solution
- Step 1: Write the proportion equation
275,299.09 : 379,915.33 = 154,442.97 : x - Step 2: Convert to fraction form
275,299.09/379,915.33 = 154,442.97/x - Step 3: Cross multiply
275,299.09x = 379,915.33 × 154,442.97 - Step 4: Simplify right side
275,299.09x = 58,675,251,183.06 - Step 5: Solve for x
x = 58,675,251,183.06/275,299.09 - Step 6: Final answer
x = 213,132.75
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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.