Finding the Fourth Proportional to 255.36, 382.99 and 92.99
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Solution
The fourth proportional to 255.36, 382.99 and 92.99 is: 139.47
Step by Step Solution
- Step 1: Write the proportion equation
255.36 : 382.99 = 92.99 : x - Step 2: Convert to fraction form
255.36/382.99 = 92.99/x - Step 3: Cross multiply
255.36x = 382.99 × 92.99 - Step 4: Simplify right side
255.36x = 35,614.24 - Step 5: Solve for x
x = 35,614.24/255.36 - Step 6: Final answer
x = 139.47
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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.