Finding the Fourth Proportional to 194,138.97, 290,963.09 and 87,409.26
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Solution
The fourth proportional to 194,138.97, 290,963.09 and 87,409.26 is: 131,003.42
Step by Step Solution
- Step 1: Write the proportion equation
194,138.97 : 290,963.09 = 87,409.26 : x - Step 2: Convert to fraction form
194,138.97/290,963.09 = 87,409.26/x - Step 3: Cross multiply
194,138.97x = 290,963.09 × 87,409.26 - Step 4: Simplify right side
194,138.97x = 25,432,868,384.21 - Step 5: Solve for x
x = 25,432,868,384.21/194,138.97 - Step 6: Final answer
x = 131,003.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.