Finding the Fourth Proportional to 378.97, 568.37 and 104.99
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Solution
The fourth proportional to 378.97, 568.37 and 104.99 is: 157.46
Step by Step Solution
- Step 1: Write the proportion equation
378.97 : 568.37 = 104.99 : x - Step 2: Convert to fraction form
378.97/568.37 = 104.99/x - Step 3: Cross multiply
378.97x = 568.37 × 104.99 - Step 4: Simplify right side
378.97x = 59,673.17 - Step 5: Solve for x
x = 59,673.17/378.97 - Step 6: Final answer
x = 157.46
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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.