Finding the Fourth Proportional to 247.26, 370.87 and 84.94
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Solution
The fourth proportional to 247.26, 370.87 and 84.94 is: 127.41
Step by Step Solution
- Step 1: Write the proportion equation
247.26 : 370.87 = 84.94 : x - Step 2: Convert to fraction form
247.26/370.87 = 84.94/x - Step 3: Cross multiply
247.26x = 370.87 × 84.94 - Step 4: Simplify right side
247.26x = 31,502.73 - Step 5: Solve for x
x = 31,502.73/247.26 - Step 6: Final answer
x = 127.41
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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.