Finding the Fourth Proportional to 202,109.20, 303,163.80 and 68,993.80
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Solution
The fourth proportional to 202,109.20, 303,163.80 and 68,993.80 is: 103,490.70
Step by Step Solution
- Step 1: Write the proportion equation
202,109.20 : 303,163.80 = 68,993.80 : x - Step 2: Convert to fraction form
202,109.20/303,163.80 = 68,993.80/x - Step 3: Cross multiply
202,109.20x = 303,163.80 × 68,993.80 - Step 4: Simplify right side
202,109.20x = 20,916,422,584.44 - Step 5: Solve for x
x = 20,916,422,584.44/202,109.20 - Step 6: Final answer
x = 103,490.70
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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.