Finding the Fourth Proportional to 231,817.28, 347,725.92 and 126,578.84
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Solution
The fourth proportional to 231,817.28, 347,725.92 and 126,578.84 is: 189,868.26
Step by Step Solution
- Step 1: Write the proportion equation
231,817.28 : 347,725.92 = 126,578.84 : x - Step 2: Convert to fraction form
231,817.28/347,725.92 = 126,578.84/x - Step 3: Cross multiply
231,817.28x = 347,725.92 × 126,578.84 - Step 4: Simplify right side
231,817.28x = 44,014,743,591.53 - Step 5: Solve for x
x = 44,014,743,591.53/231,817.28 - Step 6: Final answer
x = 189,868.26
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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.