Finding the Fourth Proportional to 320.97, 481.17 and 198.99
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Solution
The fourth proportional to 320.97, 481.17 and 198.99 is: 298.31
Step by Step Solution
- Step 1: Write the proportion equation
320.97 : 481.17 = 198.99 : x - Step 2: Convert to fraction form
320.97/481.17 = 198.99/x - Step 3: Cross multiply
320.97x = 481.17 × 198.99 - Step 4: Simplify right side
320.97x = 95,748.02 - Step 5: Solve for x
x = 95,748.02/320.97 - Step 6: Final answer
x = 298.31
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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.