Finding the Fourth Proportional to 299.94, 449.95 and 104.99
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Solution
The fourth proportional to 299.94, 449.95 and 104.99 is: 157.50
Step by Step Solution
- Step 1: Write the proportion equation
299.94 : 449.95 = 104.99 : x - Step 2: Convert to fraction form
299.94/449.95 = 104.99/x - Step 3: Cross multiply
299.94x = 449.95 × 104.99 - Step 4: Simplify right side
299.94x = 47,240.25 - Step 5: Solve for x
x = 47,240.25/299.94 - Step 6: Final answer
x = 157.50
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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.