Finding the Fourth Proportional to 252.84, 378.74 and 161.31
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Solution
The fourth proportional to 252.84, 378.74 and 161.31 is: 241.63
Step by Step Solution
- Step 1: Write the proportion equation
252.84 : 378.74 = 161.31 : x - Step 2: Convert to fraction form
252.84/378.74 = 161.31/x - Step 3: Cross multiply
252.84x = 378.74 × 161.31 - Step 4: Simplify right side
252.84x = 61,093.06 - Step 5: Solve for x
x = 61,093.06/252.84 - Step 6: Final answer
x = 241.63
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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.