Finding the Fourth Proportional to 299.70, 449.42 and 116.99
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Solution
The fourth proportional to 299.70, 449.42 and 116.99 is: 175.44
Step by Step Solution
- Step 1: Write the proportion equation
299.70 : 449.42 = 116.99 : x - Step 2: Convert to fraction form
299.70/449.42 = 116.99/x - Step 3: Cross multiply
299.70x = 449.42 × 116.99 - Step 4: Simplify right side
299.70x = 52,579.03 - Step 5: Solve for x
x = 52,579.03/299.70 - Step 6: Final answer
x = 175.44
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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.