Finding the Fourth Proportional to 261.44, 360.84 and 163.14
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Solution
The fourth proportional to 261.44, 360.84 and 163.14 is: 225.17
Step by Step Solution
- Step 1: Write the proportion equation
261.44 : 360.84 = 163.14 : x - Step 2: Convert to fraction form
261.44/360.84 = 163.14/x - Step 3: Cross multiply
261.44x = 360.84 × 163.14 - Step 4: Simplify right side
261.44x = 58,867.44 - Step 5: Solve for x
x = 58,867.44/261.44 - Step 6: Final answer
x = 225.17
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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.