Finding the Fourth Proportional to 138.26, 207.24 and 97.67
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Solution
The fourth proportional to 138.26, 207.24 and 97.67 is: 146.40
Step by Step Solution
- Step 1: Write the proportion equation
138.26 : 207.24 = 97.67 : x - Step 2: Convert to fraction form
138.26/207.24 = 97.67/x - Step 3: Cross multiply
138.26x = 207.24 × 97.67 - Step 4: Simplify right side
138.26x = 20,241.13 - Step 5: Solve for x
x = 20,241.13/138.26 - Step 6: Final answer
x = 146.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.