Finding the Fourth Proportional to 379.88, 524.08 and 239.95
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Solution
The fourth proportional to 379.88, 524.08 and 239.95 is: 331.03
Step by Step Solution
- Step 1: Write the proportion equation
379.88 : 524.08 = 239.95 : x - Step 2: Convert to fraction form
379.88/524.08 = 239.95/x - Step 3: Cross multiply
379.88x = 524.08 × 239.95 - Step 4: Simplify right side
379.88x = 125,751.09 - Step 5: Solve for x
x = 125,751.09/379.88 - Step 6: Final answer
x = 331.03
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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.