Finding the Fourth Proportional to 163.21, 224.97 and 144.70
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Solution
The fourth proportional to 163.21, 224.97 and 144.70 is: 199.46
Step by Step Solution
- Step 1: Write the proportion equation
163.21 : 224.97 = 144.70 : x - Step 2: Convert to fraction form
163.21/224.97 = 144.70/x - Step 3: Cross multiply
163.21x = 224.97 × 144.70 - Step 4: Simplify right side
163.21x = 32,553.16 - Step 5: Solve for x
x = 32,553.16/163.21 - Step 6: Final answer
x = 199.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.