Finding the Fourth Proportional to 449.47, 620.26 and 252.97
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Solution
The fourth proportional to 449.47, 620.26 and 252.97 is: 349.09
Step by Step Solution
- Step 1: Write the proportion equation
449.47 : 620.26 = 252.97 : x - Step 2: Convert to fraction form
449.47/620.26 = 252.97/x - Step 3: Cross multiply
449.47x = 620.26 × 252.97 - Step 4: Simplify right side
449.47x = 156,904.99 - Step 5: Solve for x
x = 156,904.99/449.47 - Step 6: Final answer
x = 349.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.