Finding the Fourth Proportional to 358.75, 495.09 and 201.40
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Solution
The fourth proportional to 358.75, 495.09 and 201.40 is: 277.94
Step by Step Solution
- Step 1: Write the proportion equation
358.75 : 495.09 = 201.40 : x - Step 2: Convert to fraction form
358.75/495.09 = 201.40/x - Step 3: Cross multiply
358.75x = 495.09 × 201.40 - Step 4: Simplify right side
358.75x = 99,711.13 - Step 5: Solve for x
x = 99,711.13/358.75 - Step 6: Final answer
x = 277.94
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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.