Finding the Fourth Proportional to 234.82, 351.46 and 212.37
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Solution
The fourth proportional to 234.82, 351.46 and 212.37 is: 317.86
Step by Step Solution
- Step 1: Write the proportion equation
234.82 : 351.46 = 212.37 : x - Step 2: Convert to fraction form
234.82/351.46 = 212.37/x - Step 3: Cross multiply
234.82x = 351.46 × 212.37 - Step 4: Simplify right side
234.82x = 74,639.56 - Step 5: Solve for x
x = 74,639.56/234.82 - Step 6: Final answer
x = 317.86
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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.