Finding the Fourth Proportional to 274.33, 378.48 and 163.79
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Solution
The fourth proportional to 274.33, 378.48 and 163.79 is: 225.97
Step by Step Solution
- Step 1: Write the proportion equation
274.33 : 378.48 = 163.79 : x - Step 2: Convert to fraction form
274.33/378.48 = 163.79/x - Step 3: Cross multiply
274.33x = 378.48 × 163.79 - Step 4: Simplify right side
274.33x = 61,991.24 - Step 5: Solve for x
x = 61,991.24/274.33 - Step 6: Final answer
x = 225.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.