Finding the Fourth Proportional to 163.95, 226.58 and 122.64
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Solution
The fourth proportional to 163.95, 226.58 and 122.64 is: 169.49
Step by Step Solution
- Step 1: Write the proportion equation
163.95 : 226.58 = 122.64 : x - Step 2: Convert to fraction form
163.95/226.58 = 122.64/x - Step 3: Cross multiply
163.95x = 226.58 × 122.64 - Step 4: Simplify right side
163.95x = 27,787.16 - Step 5: Solve for x
x = 27,787.16/163.95 - Step 6: Final answer
x = 169.49
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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.