Finding the Fourth Proportional to 326.99, 490.73 and 121.68
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Solution
The fourth proportional to 326.99, 490.73 and 121.68 is: 182.61
Step by Step Solution
- Step 1: Write the proportion equation
326.99 : 490.73 = 121.68 : x - Step 2: Convert to fraction form
326.99/490.73 = 121.68/x - Step 3: Cross multiply
326.99x = 490.73 × 121.68 - Step 4: Simplify right side
326.99x = 59,711.42 - Step 5: Solve for x
x = 59,711.42/326.99 - Step 6: Final answer
x = 182.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.