Finding the Fourth Proportional to 195.11, 292.73 and 79.68
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Solution
The fourth proportional to 195.11, 292.73 and 79.68 is: 119.55
Step by Step Solution
- Step 1: Write the proportion equation
195.11 : 292.73 = 79.68 : x - Step 2: Convert to fraction form
195.11/292.73 = 79.68/x - Step 3: Cross multiply
195.11x = 292.73 × 79.68 - Step 4: Simplify right side
195.11x = 23,325.87 - Step 5: Solve for x
x = 23,325.87/195.11 - Step 6: Final answer
x = 119.55
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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.