Finding the Fourth Proportional to 194.96, 292.26 and 79.28
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Solution
The fourth proportional to 194.96, 292.26 and 79.28 is: 118.85
Step by Step Solution
- Step 1: Write the proportion equation
194.96 : 292.26 = 79.28 : x - Step 2: Convert to fraction form
194.96/292.26 = 79.28/x - Step 3: Cross multiply
194.96x = 292.26 × 79.28 - Step 4: Simplify right side
194.96x = 23,170.37 - Step 5: Solve for x
x = 23,170.37/194.96 - Step 6: Final answer
x = 118.85
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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.