Finding the Fourth Proportional to 254.09, 381.93 and 220.26
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Solution
The fourth proportional to 254.09, 381.93 and 220.26 is: 331.08
Step by Step Solution
- Step 1: Write the proportion equation
254.09 : 381.93 = 220.26 : x - Step 2: Convert to fraction form
254.09/381.93 = 220.26/x - Step 3: Cross multiply
254.09x = 381.93 × 220.26 - Step 4: Simplify right side
254.09x = 84,122.13 - Step 5: Solve for x
x = 84,122.13/254.09 - Step 6: Final answer
x = 331.08
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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.