Finding the Fourth Proportional to 489.26, 734.61 and 353.09
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Solution
The fourth proportional to 489.26, 734.61 and 353.09 is: 530.15
Step by Step Solution
- Step 1: Write the proportion equation
489.26 : 734.61 = 353.09 : x - Step 2: Convert to fraction form
489.26/734.61 = 353.09/x - Step 3: Cross multiply
489.26x = 734.61 × 353.09 - Step 4: Simplify right side
489.26x = 259,383.44 - Step 5: Solve for x
x = 259,383.44/489.26 - Step 6: Final answer
x = 530.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.