Finding the Fourth Proportional to 252.67, 378.69 and 175.68
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Solution
The fourth proportional to 252.67, 378.69 and 175.68 is: 263.30
Step by Step Solution
- Step 1: Write the proportion equation
252.67 : 378.69 = 175.68 : x - Step 2: Convert to fraction form
252.67/378.69 = 175.68/x - Step 3: Cross multiply
252.67x = 378.69 × 175.68 - Step 4: Simplify right side
252.67x = 66,528.26 - Step 5: Solve for x
x = 66,528.26/252.67 - Step 6: Final answer
x = 263.30
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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.