Finding the Fourth Proportional to 373,742.75, 515,757.79 and 203,978.09
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Solution
The fourth proportional to 373,742.75, 515,757.79 and 203,978.09 is: 281,485.83
Step by Step Solution
- Step 1: Write the proportion equation
373,742.75 : 515,757.79 = 203,978.09 : x - Step 2: Convert to fraction form
373,742.75/515,757.79 = 203,978.09/x - Step 3: Cross multiply
373,742.75x = 515,757.79 × 203,978.09 - Step 4: Simplify right side
373,742.75x = 105,203,288,906.82 - Step 5: Solve for x
x = 105,203,288,906.82/373,742.75 - Step 6: Final answer
x = 281,485.83
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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.