Finding the Fourth Proportional to 132.23, 198.36 and 40.95
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Solution
The fourth proportional to 132.23, 198.36 and 40.95 is: 61.43
Step by Step Solution
- Step 1: Write the proportion equation
132.23 : 198.36 = 40.95 : x - Step 2: Convert to fraction form
132.23/198.36 = 40.95/x - Step 3: Cross multiply
132.23x = 198.36 × 40.95 - Step 4: Simplify right side
132.23x = 8,122.84 - Step 5: Solve for x
x = 8,122.84/132.23 - Step 6: Final answer
x = 61.43
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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.