Finding the Fourth Proportional to 194.26, 291.36 and 84.64
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Solution
The fourth proportional to 194.26, 291.36 and 84.64 is: 126.95
Step by Step Solution
- Step 1: Write the proportion equation
194.26 : 291.36 = 84.64 : x - Step 2: Convert to fraction form
194.26/291.36 = 84.64/x - Step 3: Cross multiply
194.26x = 291.36 × 84.64 - Step 4: Simplify right side
194.26x = 24,660.71 - Step 5: Solve for x
x = 24,660.71/194.26 - Step 6: Final answer
x = 126.95
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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.