Finding the Fourth Proportional to 163.30, 226.87 and 161.80
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Solution
The fourth proportional to 163.30, 226.87 and 161.80 is: 224.79
Step by Step Solution
- Step 1: Write the proportion equation
163.30 : 226.87 = 161.80 : x - Step 2: Convert to fraction form
163.30/226.87 = 161.80/x - Step 3: Cross multiply
163.30x = 226.87 × 161.80 - Step 4: Simplify right side
163.30x = 36,707.57 - Step 5: Solve for x
x = 36,707.57/163.30 - Step 6: Final answer
x = 224.79
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.