Finding the Fourth Proportional to 163.52, 225.99 and 122.21
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Solution
The fourth proportional to 163.52, 225.99 and 122.21 is: 168.90
Step by Step Solution
- Step 1: Write the proportion equation
163.52 : 225.99 = 122.21 : x - Step 2: Convert to fraction form
163.52/225.99 = 122.21/x - Step 3: Cross multiply
163.52x = 225.99 × 122.21 - Step 4: Simplify right side
163.52x = 27,617.96 - Step 5: Solve for x
x = 27,617.96/163.52 - Step 6: Final answer
x = 168.90
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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.