Finding the Fourth Proportional to 132.21, 197.19 and 118.44
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Solution
The fourth proportional to 132.21, 197.19 and 118.44 is: 176.65
Step by Step Solution
- Step 1: Write the proportion equation
132.21 : 197.19 = 118.44 : x - Step 2: Convert to fraction form
132.21/197.19 = 118.44/x - Step 3: Cross multiply
132.21x = 197.19 × 118.44 - Step 4: Simplify right side
132.21x = 23,355.18 - Step 5: Solve for x
x = 23,355.18/132.21 - Step 6: Final answer
x = 176.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.