Finding the Fourth Proportional to 132.21, 198.36 and 119.52
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Solution
The fourth proportional to 132.21, 198.36 and 119.52 is: 179.32
Step by Step Solution
- Step 1: Write the proportion equation
132.21 : 198.36 = 119.52 : x - Step 2: Convert to fraction form
132.21/198.36 = 119.52/x - Step 3: Cross multiply
132.21x = 198.36 × 119.52 - Step 4: Simplify right side
132.21x = 23,707.99 - Step 5: Solve for x
x = 23,707.99/132.21 - Step 6: Final answer
x = 179.32
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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.