Finding the Fourth Proportional to 343.26, 515.21 and 235.13
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Solution
The fourth proportional to 343.26, 515.21 and 235.13 is: 352.90
Step by Step Solution
- Step 1: Write the proportion equation
343.26 : 515.21 = 235.13 : x - Step 2: Convert to fraction form
343.26/515.21 = 235.13/x - Step 3: Cross multiply
343.26x = 515.21 × 235.13 - Step 4: Simplify right side
343.26x = 121,137.58 - Step 5: Solve for x
x = 121,137.58/343.26 - Step 6: Final answer
x = 352.90
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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.