Finding the Fourth Proportional to 239.26, 330.29 and 207.63
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Solution
The fourth proportional to 239.26, 330.29 and 207.63 is: 286.63
Step by Step Solution
- Step 1: Write the proportion equation
239.26 : 330.29 = 207.63 : x - Step 2: Convert to fraction form
239.26/330.29 = 207.63/x - Step 3: Cross multiply
239.26x = 330.29 × 207.63 - Step 4: Simplify right side
239.26x = 68,578.11 - Step 5: Solve for x
x = 68,578.11/239.26 - Step 6: Final answer
x = 286.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.