Finding the Fourth Proportional to 327.21, 490.73 and 235.64
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Solution
The fourth proportional to 327.21, 490.73 and 235.64 is: 353.39
Step by Step Solution
- Step 1: Write the proportion equation
327.21 : 490.73 = 235.64 : x - Step 2: Convert to fraction form
327.21/490.73 = 235.64/x - Step 3: Cross multiply
327.21x = 490.73 × 235.64 - Step 4: Simplify right side
327.21x = 115,631.99 - Step 5: Solve for x
x = 115,631.99/327.21 - Step 6: Final answer
x = 353.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.