Finding the Fourth Proportional to 392,163.36, 541,165.68 and 222,413.28
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Solution
The fourth proportional to 392,163.36, 541,165.68 and 222,413.28 is: 306,919.12
Step by Step Solution
- Step 1: Write the proportion equation
392,163.36 : 541,165.68 = 222,413.28 : x - Step 2: Convert to fraction form
392,163.36/541,165.68 = 222,413.28/x - Step 3: Cross multiply
392,163.36x = 541,165.68 × 222,413.28 - Step 4: Simplify right side
392,163.36x = 120,362,433,912.23 - Step 5: Solve for x
x = 120,362,433,912.23/392,163.36 - Step 6: Final answer
x = 306,919.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.