Finding the Fourth Proportional to 327.32, 490.99 and 135.08
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Solution
The fourth proportional to 327.32, 490.99 and 135.08 is: 202.63
Step by Step Solution
- Step 1: Write the proportion equation
327.32 : 490.99 = 135.08 : x - Step 2: Convert to fraction form
327.32/490.99 = 135.08/x - Step 3: Cross multiply
327.32x = 490.99 × 135.08 - Step 4: Simplify right side
327.32x = 66,323.82 - Step 5: Solve for x
x = 66,323.82/327.32 - Step 6: Final answer
x = 202.63
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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.