Finding the Fourth Proportional to 239.69, 359.24 and 207.09
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Solution
The fourth proportional to 239.69, 359.24 and 207.09 is: 310.37
Step by Step Solution
- Step 1: Write the proportion equation
239.69 : 359.24 = 207.09 : x - Step 2: Convert to fraction form
239.69/359.24 = 207.09/x - Step 3: Cross multiply
239.69x = 359.24 × 207.09 - Step 4: Simplify right side
239.69x = 74,393.98 - Step 5: Solve for x
x = 74,393.98/239.69 - Step 6: Final answer
x = 310.37
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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.