Finding the Fourth Proportional to 239.23, 330.39 and 193.09
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Solution
The fourth proportional to 239.23, 330.39 and 193.09 is: 266.67
Step by Step Solution
- Step 1: Write the proportion equation
239.23 : 330.39 = 193.09 : x - Step 2: Convert to fraction form
239.23/330.39 = 193.09/x - Step 3: Cross multiply
239.23x = 330.39 × 193.09 - Step 4: Simplify right side
239.23x = 63,795.01 - Step 5: Solve for x
x = 63,795.01/239.23 - Step 6: Final answer
x = 266.67
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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.