Finding the Fourth Proportional to 239.18, 358.79 and 94.88
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Solution
The fourth proportional to 239.18, 358.79 and 94.88 is: 142.32
Step by Step Solution
- Step 1: Write the proportion equation
239.18 : 358.79 = 94.88 : x - Step 2: Convert to fraction form
239.18/358.79 = 94.88/x - Step 3: Cross multiply
239.18x = 358.79 × 94.88 - Step 4: Simplify right side
239.18x = 34,039.73 - Step 5: Solve for x
x = 34,039.73/239.18 - Step 6: Final answer
x = 142.32
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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.