Finding the Fourth Proportional to 239.28, 358.92 and 201.12
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Solution
The fourth proportional to 239.28, 358.92 and 201.12 is: 301.68
Step by Step Solution
- Step 1: Write the proportion equation
239.28 : 358.92 = 201.12 : x - Step 2: Convert to fraction form
239.28/358.92 = 201.12/x - Step 3: Cross multiply
239.28x = 358.92 × 201.12 - Step 4: Simplify right side
239.28x = 72,185.99 - Step 5: Solve for x
x = 72,185.99/239.28 - Step 6: Final answer
x = 301.68
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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.