Finding the Fourth Proportional to 343.26, 515.10 and 126.99
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Solution
The fourth proportional to 343.26, 515.10 and 126.99 is: 190.56
Step by Step Solution
- Step 1: Write the proportion equation
343.26 : 515.10 = 126.99 : x - Step 2: Convert to fraction form
343.26/515.10 = 126.99/x - Step 3: Cross multiply
343.26x = 515.10 × 126.99 - Step 4: Simplify right side
343.26x = 65,412.92 - Step 5: Solve for x
x = 65,412.92/343.26 - Step 6: Final answer
x = 190.56
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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.