Finding the Fourth Proportional to 274.48, 378.79 and 163.96
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Solution
The fourth proportional to 274.48, 378.79 and 163.96 is: 226.27
Step by Step Solution
- Step 1: Write the proportion equation
274.48 : 378.79 = 163.96 : x - Step 2: Convert to fraction form
274.48/378.79 = 163.96/x - Step 3: Cross multiply
274.48x = 378.79 × 163.96 - Step 4: Simplify right side
274.48x = 62,106.41 - Step 5: Solve for x
x = 62,106.41/274.48 - Step 6: Final answer
x = 226.27
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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.