Finding the Fourth Proportional to 203.78, 305.52 and 163.19
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Solution
The fourth proportional to 203.78, 305.52 and 163.19 is: 244.66
Step by Step Solution
- Step 1: Write the proportion equation
203.78 : 305.52 = 163.19 : x - Step 2: Convert to fraction form
203.78/305.52 = 163.19/x - Step 3: Cross multiply
203.78x = 305.52 × 163.19 - Step 4: Simplify right side
203.78x = 49,856.28 - Step 5: Solve for x
x = 49,856.28/203.78 - Step 6: Final answer
x = 244.66
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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.