Finding the Fourth Proportional to 163.70, 226.02 and 107.78
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Solution
The fourth proportional to 163.70, 226.02 and 107.78 is: 148.81
Step by Step Solution
- Step 1: Write the proportion equation
163.70 : 226.02 = 107.78 : x - Step 2: Convert to fraction form
163.70/226.02 = 107.78/x - Step 3: Cross multiply
163.70x = 226.02 × 107.78 - Step 4: Simplify right side
163.70x = 24,360.44 - Step 5: Solve for x
x = 24,360.44/163.70 - Step 6: Final answer
x = 148.81
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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.