Finding the Fourth Proportional to 449.63, 674.42 and 124.99
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Solution
The fourth proportional to 449.63, 674.42 and 124.99 is: 187.48
Step by Step Solution
- Step 1: Write the proportion equation
449.63 : 674.42 = 124.99 : x - Step 2: Convert to fraction form
449.63/674.42 = 124.99/x - Step 3: Cross multiply
449.63x = 674.42 × 124.99 - Step 4: Simplify right side
449.63x = 84,295.76 - Step 5: Solve for x
x = 84,295.76/449.63 - Step 6: Final answer
x = 187.48
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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.