Finding the Fourth Proportional to 338.87, 508.26 and 107.75
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Solution
The fourth proportional to 338.87, 508.26 and 107.75 is: 161.61
Step by Step Solution
- Step 1: Write the proportion equation
338.87 : 508.26 = 107.75 : x - Step 2: Convert to fraction form
338.87/508.26 = 107.75/x - Step 3: Cross multiply
338.87x = 508.26 × 107.75 - Step 4: Simplify right side
338.87x = 54,765.02 - Step 5: Solve for x
x = 54,765.02/338.87 - Step 6: Final answer
x = 161.61
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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.