Finding the Fourth Proportional to 254.96, 382.08 and 126.80
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Solution
The fourth proportional to 254.96, 382.08 and 126.80 is: 190.02
Step by Step Solution
- Step 1: Write the proportion equation
254.96 : 382.08 = 126.80 : x - Step 2: Convert to fraction form
254.96/382.08 = 126.80/x - Step 3: Cross multiply
254.96x = 382.08 × 126.80 - Step 4: Simplify right side
254.96x = 48,447.74 - Step 5: Solve for x
x = 48,447.74/254.96 - Step 6: Final answer
x = 190.02
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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.