Finding the Fourth Proportional to 201.36, 278.19 and 163.02
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Solution
The fourth proportional to 201.36, 278.19 and 163.02 is: 225.22
Step by Step Solution
- Step 1: Write the proportion equation
201.36 : 278.19 = 163.02 : x - Step 2: Convert to fraction form
201.36/278.19 = 163.02/x - Step 3: Cross multiply
201.36x = 278.19 × 163.02 - Step 4: Simplify right side
201.36x = 45,350.53 - Step 5: Solve for x
x = 45,350.53/201.36 - Step 6: Final answer
x = 225.22
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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.