Finding the Fourth Proportional to 251.85, 377.74 and 69.26
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Solution
The fourth proportional to 251.85, 377.74 and 69.26 is: 103.88
Step by Step Solution
- Step 1: Write the proportion equation
251.85 : 377.74 = 69.26 : x - Step 2: Convert to fraction form
251.85/377.74 = 69.26/x - Step 3: Cross multiply
251.85x = 377.74 × 69.26 - Step 4: Simplify right side
251.85x = 26,161.93 - Step 5: Solve for x
x = 26,161.93/251.85 - Step 6: Final answer
x = 103.88
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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.