Finding the Fourth Proportional to 396,163.20, 594,115.20 and 146,812.80
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Solution
The fourth proportional to 396,163.20, 594,115.20 and 146,812.80 is: 220,171.17
Step by Step Solution
- Step 1: Write the proportion equation
396,163.20 : 594,115.20 = 146,812.80 : x - Step 2: Convert to fraction form
396,163.20/594,115.20 = 146,812.80/x - Step 3: Cross multiply
396,163.20x = 594,115.20 × 146,812.80 - Step 4: Simplify right side
396,163.20x = 87,223,716,034.56 - Step 5: Solve for x
x = 87,223,716,034.56/396,163.20 - Step 6: Final answer
x = 220,171.17
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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.