Finding the Fourth Proportional to 252.26, 378.32 and 122.26
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Solution
The fourth proportional to 252.26, 378.32 and 122.26 is: 183.36
Step by Step Solution
- Step 1: Write the proportion equation
252.26 : 378.32 = 122.26 : x - Step 2: Convert to fraction form
252.26/378.32 = 122.26/x - Step 3: Cross multiply
252.26x = 378.32 × 122.26 - Step 4: Simplify right side
252.26x = 46,253.40 - Step 5: Solve for x
x = 46,253.40/252.26 - Step 6: Final answer
x = 183.36
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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.