Finding the Fourth Proportional to 422,218.53, 582,631.25 and 231,201.09
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Solution
The fourth proportional to 422,218.53, 582,631.25 and 231,201.09 is: 319,040.90
Step by Step Solution
- Step 1: Write the proportion equation
422,218.53 : 582,631.25 = 231,201.09 : x - Step 2: Convert to fraction form
422,218.53/582,631.25 = 231,201.09/x - Step 3: Cross multiply
422,218.53x = 582,631.25 × 231,201.09 - Step 4: Simplify right side
422,218.53x = 134,704,978,912.06 - Step 5: Solve for x
x = 134,704,978,912.06/422,218.53 - Step 6: Final answer
x = 319,040.90
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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.