Finding the Fourth Proportional to 274.05, 378.23 and 163.53
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Solution
The fourth proportional to 274.05, 378.23 and 163.53 is: 225.69
Step by Step Solution
- Step 1: Write the proportion equation
274.05 : 378.23 = 163.53 : x - Step 2: Convert to fraction form
274.05/378.23 = 163.53/x - Step 3: Cross multiply
274.05x = 378.23 × 163.53 - Step 4: Simplify right side
274.05x = 61,851.13 - Step 5: Solve for x
x = 61,851.13/274.05 - Step 6: Final answer
x = 225.69
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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.