Finding the Fourth Proportional to 163.26, 225.33 and 107.90
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Solution
The fourth proportional to 163.26, 225.33 and 107.90 is: 148.92
Step by Step Solution
- Step 1: Write the proportion equation
163.26 : 225.33 = 107.90 : x - Step 2: Convert to fraction form
163.26/225.33 = 107.90/x - Step 3: Cross multiply
163.26x = 225.33 × 107.90 - Step 4: Simplify right side
163.26x = 24,313.11 - Step 5: Solve for x
x = 24,313.11/163.26 - Step 6: Final answer
x = 148.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.