Finding the Fourth Proportional to 299.99, 449.99 and 126.62
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Solution
The fourth proportional to 299.99, 449.99 and 126.62 is: 189.93
Step by Step Solution
- Step 1: Write the proportion equation
299.99 : 449.99 = 126.62 : x - Step 2: Convert to fraction form
299.99/449.99 = 126.62/x - Step 3: Cross multiply
299.99x = 449.99 × 126.62 - Step 4: Simplify right side
299.99x = 56,977.01 - Step 5: Solve for x
x = 56,977.01/299.99 - Step 6: Final answer
x = 189.93
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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.