Finding the Fourth Proportional to 317.54, 437.99 and 199.44
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Solution
The fourth proportional to 317.54, 437.99 and 199.44 is: 275.09
Step by Step Solution
- Step 1: Write the proportion equation
317.54 : 437.99 = 199.44 : x - Step 2: Convert to fraction form
317.54/437.99 = 199.44/x - Step 3: Cross multiply
317.54x = 437.99 × 199.44 - Step 4: Simplify right side
317.54x = 87,351.73 - Step 5: Solve for x
x = 87,351.73/317.54 - Step 6: Final answer
x = 275.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.