Finding the Fourth Proportional to 251.87, 347.36 and 163.26
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Solution
The fourth proportional to 251.87, 347.36 and 163.26 is: 225.16
Step by Step Solution
- Step 1: Write the proportion equation
251.87 : 347.36 = 163.26 : x - Step 2: Convert to fraction form
251.87/347.36 = 163.26/x - Step 3: Cross multiply
251.87x = 347.36 × 163.26 - Step 4: Simplify right side
251.87x = 56,709.18 - Step 5: Solve for x
x = 56,709.18/251.87 - Step 6: Final answer
x = 225.16
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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.