Finding the Fourth Proportional to 391.26, 586.99 and 174.99
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Solution
The fourth proportional to 391.26, 586.99 and 174.99 is: 262.53
Step by Step Solution
- Step 1: Write the proportion equation
391.26 : 586.99 = 174.99 : x - Step 2: Convert to fraction form
391.26/586.99 = 174.99/x - Step 3: Cross multiply
391.26x = 586.99 × 174.99 - Step 4: Simplify right side
391.26x = 102,717.38 - Step 5: Solve for x
x = 102,717.38/391.26 - Step 6: Final answer
x = 262.53
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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.