Finding the Fourth Proportional to 445.99, 615.49 and 249.49
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Solution
The fourth proportional to 445.99, 615.49 and 249.49 is: 344.31
Step by Step Solution
- Step 1: Write the proportion equation
445.99 : 615.49 = 249.49 : x - Step 2: Convert to fraction form
445.99/615.49 = 249.49/x - Step 3: Cross multiply
445.99x = 615.49 × 249.49 - Step 4: Simplify right side
445.99x = 153,556.69 - Step 5: Solve for x
x = 153,556.69/445.99 - Step 6: Final answer
x = 344.31
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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.