Finding the Fourth Proportional to 239.62, 331.08 and 190.93
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Solution
The fourth proportional to 239.62, 331.08 and 190.93 is: 263.81
Step by Step Solution
- Step 1: Write the proportion equation
239.62 : 331.08 = 190.93 : x - Step 2: Convert to fraction form
239.62/331.08 = 190.93/x - Step 3: Cross multiply
239.62x = 331.08 × 190.93 - Step 4: Simplify right side
239.62x = 63,213.10 - Step 5: Solve for x
x = 63,213.10/239.62 - Step 6: Final answer
x = 263.81
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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.