Finding the Fourth Proportional to 326.99, 490.18 and 121.41
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Solution
The fourth proportional to 326.99, 490.18 and 121.41 is: 182.00
Step by Step Solution
- Step 1: Write the proportion equation
326.99 : 490.18 = 121.41 : x - Step 2: Convert to fraction form
326.99/490.18 = 121.41/x - Step 3: Cross multiply
326.99x = 490.18 × 121.41 - Step 4: Simplify right side
326.99x = 59,512.75 - Step 5: Solve for x
x = 59,512.75/326.99 - Step 6: Final answer
x = 182.00
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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.