Finding the Fourth Proportional to 282.44, 390.09 and 249.63
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Solution
The fourth proportional to 282.44, 390.09 and 249.63 is: 344.78
Step by Step Solution
- Step 1: Write the proportion equation
282.44 : 390.09 = 249.63 : x - Step 2: Convert to fraction form
282.44/390.09 = 249.63/x - Step 3: Cross multiply
282.44x = 390.09 × 249.63 - Step 4: Simplify right side
282.44x = 97,379.13 - Step 5: Solve for x
x = 97,379.13/282.44 - Step 6: Final answer
x = 344.78
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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.