Finding the Fourth Proportional to 132.26, 198.36 and 40.94
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Solution
The fourth proportional to 132.26, 198.36 and 40.94 is: 61.40
Step by Step Solution
- Step 1: Write the proportion equation
132.26 : 198.36 = 40.94 : x - Step 2: Convert to fraction form
132.26/198.36 = 40.94/x - Step 3: Cross multiply
132.26x = 198.36 × 40.94 - Step 4: Simplify right side
132.26x = 8,119.87 - Step 5: Solve for x
x = 8,119.87/132.26 - Step 6: Final answer
x = 61.40
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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.