Finding the Fourth Proportional to 239.54, 358.97 and 136.61
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Solution
The fourth proportional to 239.54, 358.97 and 136.61 is: 204.72
Step by Step Solution
- Step 1: Write the proportion equation
239.54 : 358.97 = 136.61 : x - Step 2: Convert to fraction form
239.54/358.97 = 136.61/x - Step 3: Cross multiply
239.54x = 358.97 × 136.61 - Step 4: Simplify right side
239.54x = 49,038.21 - Step 5: Solve for x
x = 49,038.21/239.54 - Step 6: Final answer
x = 204.72
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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.