Finding the Fourth Proportional to 252.20, 378.36 and 122.27
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Solution
The fourth proportional to 252.20, 378.36 and 122.27 is: 183.43
Step by Step Solution
- Step 1: Write the proportion equation
252.20 : 378.36 = 122.27 : x - Step 2: Convert to fraction form
252.20/378.36 = 122.27/x - Step 3: Cross multiply
252.20x = 378.36 × 122.27 - Step 4: Simplify right side
252.20x = 46,260.41 - Step 5: Solve for x
x = 46,260.41/252.20 - Step 6: Final answer
x = 183.43
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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.