Finding the Fourth Proportional to 246.44, 369.70 and 143.78
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Solution
The fourth proportional to 246.44, 369.70 and 143.78 is: 215.68
Step by Step Solution
- Step 1: Write the proportion equation
246.44 : 369.70 = 143.78 : x - Step 2: Convert to fraction form
246.44/369.70 = 143.78/x - Step 3: Cross multiply
246.44x = 369.70 × 143.78 - Step 4: Simplify right side
246.44x = 53,153.26 - Step 5: Solve for x
x = 53,153.26/246.44 - Step 6: Final answer
x = 215.68
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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.