Finding the Fourth Proportional to 404.70, 606.99 and 130.97
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Solution
The fourth proportional to 404.70, 606.99 and 130.97 is: 196.44
Step by Step Solution
- Step 1: Write the proportion equation
404.70 : 606.99 = 130.97 : x - Step 2: Convert to fraction form
404.70/606.99 = 130.97/x - Step 3: Cross multiply
404.70x = 606.99 × 130.97 - Step 4: Simplify right side
404.70x = 79,497.48 - Step 5: Solve for x
x = 79,497.48/404.70 - Step 6: Final answer
x = 196.44
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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.