Finding the Fourth Proportional to 203.66, 305.74 and 163.03
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Solution
The fourth proportional to 203.66, 305.74 and 163.03 is: 244.75
Step by Step Solution
- Step 1: Write the proportion equation
203.66 : 305.74 = 163.03 : x - Step 2: Convert to fraction form
203.66/305.74 = 163.03/x - Step 3: Cross multiply
203.66x = 305.74 × 163.03 - Step 4: Simplify right side
203.66x = 49,843.62 - Step 5: Solve for x
x = 49,843.62/203.66 - Step 6: Final answer
x = 244.75
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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.