Finding the Fourth Proportional to 163.46, 225.64 and 122.08
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Solution
The fourth proportional to 163.46, 225.64 and 122.08 is: 168.52
Step by Step Solution
- Step 1: Write the proportion equation
163.46 : 225.64 = 122.08 : x - Step 2: Convert to fraction form
163.46/225.64 = 122.08/x - Step 3: Cross multiply
163.46x = 225.64 × 122.08 - Step 4: Simplify right side
163.46x = 27,546.13 - Step 5: Solve for x
x = 27,546.13/163.46 - Step 6: Final answer
x = 168.52
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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.