Finding the Fourth Proportional to 202.43, 303.79 and 163.47
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Solution
The fourth proportional to 202.43, 303.79 and 163.47 is: 245.33
Step by Step Solution
- Step 1: Write the proportion equation
202.43 : 303.79 = 163.47 : x - Step 2: Convert to fraction form
202.43/303.79 = 163.47/x - Step 3: Cross multiply
202.43x = 303.79 × 163.47 - Step 4: Simplify right side
202.43x = 49,660.14 - Step 5: Solve for x
x = 49,660.14/202.43 - Step 6: Final answer
x = 245.33
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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.