Finding the Fourth Proportional to 207.28, 311.04 and 199.84
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Solution
The fourth proportional to 207.28, 311.04 and 199.84 is: 299.88
Step by Step Solution
- Step 1: Write the proportion equation
207.28 : 311.04 = 199.84 : x - Step 2: Convert to fraction form
207.28/311.04 = 199.84/x - Step 3: Cross multiply
207.28x = 311.04 × 199.84 - Step 4: Simplify right side
207.28x = 62,158.23 - Step 5: Solve for x
x = 62,158.23/207.28 - Step 6: Final answer
x = 299.88
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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.