Finding the Fourth Proportional to 379.21, 568.68 and 193.94
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Solution
The fourth proportional to 379.21, 568.68 and 193.94 is: 290.83
Step by Step Solution
- Step 1: Write the proportion equation
379.21 : 568.68 = 193.94 : x - Step 2: Convert to fraction form
379.21/568.68 = 193.94/x - Step 3: Cross multiply
379.21x = 568.68 × 193.94 - Step 4: Simplify right side
379.21x = 110,285.99 - Step 5: Solve for x
x = 110,285.99/379.21 - Step 6: Final answer
x = 290.83
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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.