Finding the Fourth Proportional to 203.63, 281.21 and 133.65
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Solution
The fourth proportional to 203.63, 281.21 and 133.65 is: 184.57
Step by Step Solution
- Step 1: Write the proportion equation
203.63 : 281.21 = 133.65 : x - Step 2: Convert to fraction form
203.63/281.21 = 133.65/x - Step 3: Cross multiply
203.63x = 281.21 × 133.65 - Step 4: Simplify right side
203.63x = 37,583.05 - Step 5: Solve for x
x = 37,583.05/203.63 - Step 6: Final answer
x = 184.57
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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.