Finding the Fourth Proportional to 251.91, 347.79 and 163.44
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Solution
The fourth proportional to 251.91, 347.79 and 163.44 is: 225.65
Step by Step Solution
- Step 1: Write the proportion equation
251.91 : 347.79 = 163.44 : x - Step 2: Convert to fraction form
251.91/347.79 = 163.44/x - Step 3: Cross multiply
251.91x = 347.79 × 163.44 - Step 4: Simplify right side
251.91x = 56,842.80 - Step 5: Solve for x
x = 56,842.80/251.91 - Step 6: Final answer
x = 225.65
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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.