Finding the Fourth Proportional to 287.36, 396.62 and 170.99
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Solution
The fourth proportional to 287.36, 396.62 and 170.99 is: 236.00
Step by Step Solution
- Step 1: Write the proportion equation
287.36 : 396.62 = 170.99 : x - Step 2: Convert to fraction form
287.36/396.62 = 170.99/x - Step 3: Cross multiply
287.36x = 396.62 × 170.99 - Step 4: Simplify right side
287.36x = 67,818.05 - Step 5: Solve for x
x = 67,818.05/287.36 - Step 6: Final answer
x = 236.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.