Finding the Fourth Proportional to 239.08, 358.61 and 84.97
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Solution
The fourth proportional to 239.08, 358.61 and 84.97 is: 127.45
Step by Step Solution
- Step 1: Write the proportion equation
239.08 : 358.61 = 84.97 : x - Step 2: Convert to fraction form
239.08/358.61 = 84.97/x - Step 3: Cross multiply
239.08x = 358.61 × 84.97 - Step 4: Simplify right side
239.08x = 30,470.41 - Step 5: Solve for x
x = 30,470.41/239.08 - Step 6: Final answer
x = 127.45
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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.