Finding the Fourth Proportional to 239.36, 358.70 and 136.69
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Solution
The fourth proportional to 239.36, 358.70 and 136.69 is: 204.84
Step by Step Solution
- Step 1: Write the proportion equation
239.36 : 358.70 = 136.69 : x - Step 2: Convert to fraction form
239.36/358.70 = 136.69/x - Step 3: Cross multiply
239.36x = 358.70 × 136.69 - Step 4: Simplify right side
239.36x = 49,029.12 - Step 5: Solve for x
x = 49,029.12/239.36 - Step 6: Final answer
x = 204.84
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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.