Finding the Fourth Proportional to 239.26, 358.92 and 68.26
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Solution
The fourth proportional to 239.26, 358.92 and 68.26 is: 102.40
Step by Step Solution
- Step 1: Write the proportion equation
239.26 : 358.92 = 68.26 : x - Step 2: Convert to fraction form
239.26/358.92 = 68.26/x - Step 3: Cross multiply
239.26x = 358.92 × 68.26 - Step 4: Simplify right side
239.26x = 24,499.88 - Step 5: Solve for x
x = 24,499.88/239.26 - Step 6: Final answer
x = 102.40
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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.