Finding the Fourth Proportional to 397,431.36, 548,324.64 and 246,499.20
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Solution
The fourth proportional to 397,431.36, 548,324.64 and 246,499.20 is: 340,087.87
Step by Step Solution
- Step 1: Write the proportion equation
397,431.36 : 548,324.64 = 246,499.20 : x - Step 2: Convert to fraction form
397,431.36/548,324.64 = 246,499.20/x - Step 3: Cross multiply
397,431.36x = 548,324.64 × 246,499.20 - Step 4: Simplify right side
397,431.36x = 135,161,585,100.29 - Step 5: Solve for x
x = 135,161,585,100.29/397,431.36 - Step 6: Final answer
x = 340,087.87
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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.