Finding the Fourth Proportional to 396.99, 594.96 and 213.99
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Solution
The fourth proportional to 396.99, 594.96 and 213.99 is: 320.70
Step by Step Solution
- Step 1: Write the proportion equation
396.99 : 594.96 = 213.99 : x - Step 2: Convert to fraction form
396.99/594.96 = 213.99/x - Step 3: Cross multiply
396.99x = 594.96 × 213.99 - Step 4: Simplify right side
396.99x = 127,315.49 - Step 5: Solve for x
x = 127,315.49/396.99 - Step 6: Final answer
x = 320.70
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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.