Finding the Fourth Proportional to 209,087.94, 313,520.70 and 82,723.08
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Solution
The fourth proportional to 209,087.94, 313,520.70 and 82,723.08 is: 124,040.62
Step by Step Solution
- Step 1: Write the proportion equation
209,087.94 : 313,520.70 = 82,723.08 : x - Step 2: Convert to fraction form
209,087.94/313,520.70 = 82,723.08/x - Step 3: Cross multiply
209,087.94x = 313,520.70 × 82,723.08 - Step 4: Simplify right side
209,087.94x = 25,935,397,947.76 - Step 5: Solve for x
x = 25,935,397,947.76/209,087.94 - Step 6: Final answer
x = 124,040.62
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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.