Finding the Fourth Proportional to 133.11, 199.67 and 36.92
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Solution
The fourth proportional to 133.11, 199.67 and 36.92 is: 55.38
Step by Step Solution
- Step 1: Write the proportion equation
133.11 : 199.67 = 36.92 : x - Step 2: Convert to fraction form
133.11/199.67 = 36.92/x - Step 3: Cross multiply
133.11x = 199.67 × 36.92 - Step 4: Simplify right side
133.11x = 7,372.13 - Step 5: Solve for x
x = 7,372.13/133.11 - Step 6: Final answer
x = 55.38
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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.