Finding the Fourth Proportional to 239.26, 330.19 and 145.99
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Solution
The fourth proportional to 239.26, 330.19 and 145.99 is: 201.47
Step by Step Solution
- Step 1: Write the proportion equation
239.26 : 330.19 = 145.99 : x - Step 2: Convert to fraction form
239.26/330.19 = 145.99/x - Step 3: Cross multiply
239.26x = 330.19 × 145.99 - Step 4: Simplify right side
239.26x = 48,204.44 - Step 5: Solve for x
x = 48,204.44/239.26 - Step 6: Final answer
x = 201.47
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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.