Finding the Fourth Proportional to 163.19, 244.62 and 122.49
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Solution
The fourth proportional to 163.19, 244.62 and 122.49 is: 183.61
Step by Step Solution
- Step 1: Write the proportion equation
163.19 : 244.62 = 122.49 : x - Step 2: Convert to fraction form
163.19/244.62 = 122.49/x - Step 3: Cross multiply
163.19x = 244.62 × 122.49 - Step 4: Simplify right side
163.19x = 29,963.50 - Step 5: Solve for x
x = 29,963.50/163.19 - Step 6: Final answer
x = 183.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.