Finding the Fourth Proportional to 132.50, 198.84 and 84.44
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Solution
The fourth proportional to 132.50, 198.84 and 84.44 is: 126.72
Step by Step Solution
- Step 1: Write the proportion equation
132.50 : 198.84 = 84.44 : x - Step 2: Convert to fraction form
132.50/198.84 = 84.44/x - Step 3: Cross multiply
132.50x = 198.84 × 84.44 - Step 4: Simplify right side
132.50x = 16,790.05 - Step 5: Solve for x
x = 16,790.05/132.50 - Step 6: Final answer
x = 126.72
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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.