Finding the Fourth Proportional to 195.97, 293.73 and 87.70
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Solution
The fourth proportional to 195.97, 293.73 and 87.70 is: 131.45
Step by Step Solution
- Step 1: Write the proportion equation
195.97 : 293.73 = 87.70 : x - Step 2: Convert to fraction form
195.97/293.73 = 87.70/x - Step 3: Cross multiply
195.97x = 293.73 × 87.70 - Step 4: Simplify right side
195.97x = 25,760.12 - Step 5: Solve for x
x = 25,760.12/195.97 - Step 6: Final answer
x = 131.45
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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.