Finding the Fourth Proportional to 371.75, 513.09 and 239.02
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Solution
The fourth proportional to 371.75, 513.09 and 239.02 is: 329.88
Step by Step Solution
- Step 1: Write the proportion equation
371.75 : 513.09 = 239.02 : x - Step 2: Convert to fraction form
371.75/513.09 = 239.02/x - Step 3: Cross multiply
371.75x = 513.09 × 239.02 - Step 4: Simplify right side
371.75x = 122,636.08 - Step 5: Solve for x
x = 122,636.08/371.75 - Step 6: Final answer
x = 329.88
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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.