Finding the Fourth Proportional to 422,313.44, 582,771.84 and 231,327.68
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Solution
The fourth proportional to 422,313.44, 582,771.84 and 231,327.68 is: 319,220.86
Step by Step Solution
- Step 1: Write the proportion equation
422,313.44 : 582,771.84 = 231,327.68 : x - Step 2: Convert to fraction form
422,313.44/582,771.84 = 231,327.68/x - Step 3: Cross multiply
422,313.44x = 582,771.84 × 231,327.68 - Step 4: Simplify right side
422,313.44x = 134,811,257,716.53 - Step 5: Solve for x
x = 134,811,257,716.53/422,313.44 - Step 6: Final answer
x = 319,220.86
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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.