Finding the Fourth Proportional to 550.40, 824.99 and 331.09
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Solution
The fourth proportional to 550.40, 824.99 and 331.09 is: 496.27
Step by Step Solution
- Step 1: Write the proportion equation
550.40 : 824.99 = 331.09 : x - Step 2: Convert to fraction form
550.40/824.99 = 331.09/x - Step 3: Cross multiply
550.40x = 824.99 × 331.09 - Step 4: Simplify right side
550.40x = 273,142.22 - Step 5: Solve for x
x = 273,142.22/550.40 - Step 6: Final answer
x = 496.27
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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.