Finding the Fourth Proportional to 252.12, 378.26 and 122.18
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Solution
The fourth proportional to 252.12, 378.26 and 122.18 is: 183.31
Step by Step Solution
- Step 1: Write the proportion equation
252.12 : 378.26 = 122.18 : x - Step 2: Convert to fraction form
252.12/378.26 = 122.18/x - Step 3: Cross multiply
252.12x = 378.26 × 122.18 - Step 4: Simplify right side
252.12x = 46,215.81 - Step 5: Solve for x
x = 46,215.81/252.12 - Step 6: Final answer
x = 183.31
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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.