Finding the Fourth Proportional to 133.68, 198.93 and 132.33
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Solution
The fourth proportional to 133.68, 198.93 and 132.33 is: 196.92
Step by Step Solution
- Step 1: Write the proportion equation
133.68 : 198.93 = 132.33 : x - Step 2: Convert to fraction form
133.68/198.93 = 132.33/x - Step 3: Cross multiply
133.68x = 198.93 × 132.33 - Step 4: Simplify right side
133.68x = 26,324.41 - Step 5: Solve for x
x = 26,324.41/133.68 - Step 6: Final answer
x = 196.92
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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.