Finding the Fourth Proportional to 349.70, 523.79 and 325.67
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Solution
The fourth proportional to 349.70, 523.79 and 325.67 is: 487.79
Step by Step Solution
- Step 1: Write the proportion equation
349.70 : 523.79 = 325.67 : x - Step 2: Convert to fraction form
349.70/523.79 = 325.67/x - Step 3: Cross multiply
349.70x = 523.79 × 325.67 - Step 4: Simplify right side
349.70x = 170,578.44 - Step 5: Solve for x
x = 170,578.44/349.70 - Step 6: Final answer
x = 487.79
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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.