Finding the Fourth Proportional to 327.21, 450.99 and 239.73
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Solution
The fourth proportional to 327.21, 450.99 and 239.73 is: 330.42
Step by Step Solution
- Step 1: Write the proportion equation
327.21 : 450.99 = 239.73 : x - Step 2: Convert to fraction form
327.21/450.99 = 239.73/x - Step 3: Cross multiply
327.21x = 450.99 × 239.73 - Step 4: Simplify right side
327.21x = 108,115.83 - Step 5: Solve for x
x = 108,115.83/327.21 - Step 6: Final answer
x = 330.42
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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.