Finding the Fourth Proportional to 194,915.94, 268,983.92 and 105,491.94
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Solution
The fourth proportional to 194,915.94, 268,983.92 and 105,491.94 is: 145,578.84
Step by Step Solution
- Step 1: Write the proportion equation
194,915.94 : 268,983.92 = 105,491.94 : x - Step 2: Convert to fraction form
194,915.94/268,983.92 = 105,491.94/x - Step 3: Cross multiply
194,915.94x = 268,983.92 × 105,491.94 - Step 4: Simplify right side
194,915.94x = 28,375,635,549.60 - Step 5: Solve for x
x = 28,375,635,549.60/194,915.94 - Step 6: Final answer
x = 145,578.84
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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.