Finding the Fourth Proportional to 319.26, 440.43 and 201.18
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Solution
The fourth proportional to 319.26, 440.43 and 201.18 is: 277.53
Step by Step Solution
- Step 1: Write the proportion equation
319.26 : 440.43 = 201.18 : x - Step 2: Convert to fraction form
319.26/440.43 = 201.18/x - Step 3: Cross multiply
319.26x = 440.43 × 201.18 - Step 4: Simplify right side
319.26x = 88,605.71 - Step 5: Solve for x
x = 88,605.71/319.26 - Step 6: Final answer
x = 277.53
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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.