Finding the Fourth Proportional to 207.73, 311.99 and 126.52
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Solution
The fourth proportional to 207.73, 311.99 and 126.52 is: 190.02
Step by Step Solution
- Step 1: Write the proportion equation
207.73 : 311.99 = 126.52 : x - Step 2: Convert to fraction form
207.73/311.99 = 126.52/x - Step 3: Cross multiply
207.73x = 311.99 × 126.52 - Step 4: Simplify right side
207.73x = 39,472.97 - Step 5: Solve for x
x = 39,472.97/207.73 - Step 6: Final answer
x = 190.02
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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.