Finding the Fourth Proportional to 252.27, 378.36 and 69.68
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Solution
The fourth proportional to 252.27, 378.36 and 69.68 is: 104.50
Step by Step Solution
- Step 1: Write the proportion equation
252.27 : 378.36 = 69.68 : x - Step 2: Convert to fraction form
252.27/378.36 = 69.68/x - Step 3: Cross multiply
252.27x = 378.36 × 69.68 - Step 4: Simplify right side
252.27x = 26,362.23 - Step 5: Solve for x
x = 26,362.23/252.27 - Step 6: Final answer
x = 104.50
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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.