Finding the Fourth Proportional to 344.09, 515.11 and 331.79
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Solution
The fourth proportional to 344.09, 515.11 and 331.79 is: 496.69
Step by Step Solution
- Step 1: Write the proportion equation
344.09 : 515.11 = 331.79 : x - Step 2: Convert to fraction form
344.09/515.11 = 331.79/x - Step 3: Cross multiply
344.09x = 515.11 × 331.79 - Step 4: Simplify right side
344.09x = 170,907.01 - Step 5: Solve for x
x = 170,907.01/344.09 - Step 6: Final answer
x = 496.69
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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.