Finding the Fourth Proportional to 252.22, 378.42 and 122.26
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Solution
The fourth proportional to 252.22, 378.42 and 122.26 is: 183.43
Step by Step Solution
- Step 1: Write the proportion equation
252.22 : 378.42 = 122.26 : x - Step 2: Convert to fraction form
252.22/378.42 = 122.26/x - Step 3: Cross multiply
252.22x = 378.42 × 122.26 - Step 4: Simplify right side
252.22x = 46,265.63 - Step 5: Solve for x
x = 46,265.63/252.22 - 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.