Finding the Fourth Proportional to 388.26, 582.39 and 171.99
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Solution
The fourth proportional to 388.26, 582.39 and 171.99 is: 257.99
Step by Step Solution
- Step 1: Write the proportion equation
388.26 : 582.39 = 171.99 : x - Step 2: Convert to fraction form
388.26/582.39 = 171.99/x - Step 3: Cross multiply
388.26x = 582.39 × 171.99 - Step 4: Simplify right side
388.26x = 100,167.14 - Step 5: Solve for x
x = 100,167.14/388.26 - Step 6: Final answer
x = 257.99
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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.