Finding the Fourth Proportional to 207.03, 285.60 and 122.97
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Solution
The fourth proportional to 207.03, 285.60 and 122.97 is: 169.64
Step by Step Solution
- Step 1: Write the proportion equation
207.03 : 285.60 = 122.97 : x - Step 2: Convert to fraction form
207.03/285.60 = 122.97/x - Step 3: Cross multiply
207.03x = 285.60 × 122.97 - Step 4: Simplify right side
207.03x = 35,120.23 - Step 5: Solve for x
x = 35,120.23/207.03 - Step 6: Final answer
x = 169.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.