Finding the Fourth Proportional to 412,163.20, 618,273.60 and 162,812.80
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Solution
The fourth proportional to 412,163.20, 618,273.60 and 162,812.80 is: 244,230.58
Step by Step Solution
- Step 1: Write the proportion equation
412,163.20 : 618,273.60 = 162,812.80 : x - Step 2: Convert to fraction form
412,163.20/618,273.60 = 162,812.80/x - Step 3: Cross multiply
412,163.20x = 618,273.60 × 162,812.80 - Step 4: Simplify right side
412,163.20x = 100,662,855,982.08 - Step 5: Solve for x
x = 100,662,855,982.08/412,163.20 - Step 6: Final answer
x = 244,230.58
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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.