Finding the Fourth Proportional to 274.56, 378.88 and 163.99
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Solution
The fourth proportional to 274.56, 378.88 and 163.99 is: 226.30
Step by Step Solution
- Step 1: Write the proportion equation
274.56 : 378.88 = 163.99 : x - Step 2: Convert to fraction form
274.56/378.88 = 163.99/x - Step 3: Cross multiply
274.56x = 378.88 × 163.99 - Step 4: Simplify right side
274.56x = 62,132.53 - Step 5: Solve for x
x = 62,132.53/274.56 - Step 6: Final answer
x = 226.30
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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.