Finding the Fourth Proportional to 204.44, 281.93 and 138.83
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Solution
The fourth proportional to 204.44, 281.93 and 138.83 is: 191.45
Step by Step Solution
- Step 1: Write the proportion equation
204.44 : 281.93 = 138.83 : x - Step 2: Convert to fraction form
204.44/281.93 = 138.83/x - Step 3: Cross multiply
204.44x = 281.93 × 138.83 - Step 4: Simplify right side
204.44x = 39,138.24 - Step 5: Solve for x
x = 39,138.24/204.44 - Step 6: Final answer
x = 191.45
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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.