Finding the Fourth Proportional to 356,858.21, 492,418.79 and 203,906.31
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Solution
The fourth proportional to 356,858.21, 492,418.79 and 203,906.31 is: 281,364.69
Step by Step Solution
- Step 1: Write the proportion equation
356,858.21 : 492,418.79 = 203,906.31 : x - Step 2: Convert to fraction form
356,858.21/492,418.79 = 203,906.31/x - Step 3: Cross multiply
356,858.21x = 492,418.79 × 203,906.31 - Step 4: Simplify right side
356,858.21x = 100,407,300,258.94 - Step 5: Solve for x
x = 100,407,300,258.94/356,858.21 - Step 6: Final answer
x = 281,364.69
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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.