Finding the Fourth Proportional to 397.42, 548.22 and 250
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Solution
The fourth proportional to 397.42, 548.22 and 250 is: 344.86
Step by Step Solution
- Step 1: Write the proportion equation
397.42 : 548.22 = 250 : x - Step 2: Convert to fraction form
397.42/548.22 = 250/x - Step 3: Cross multiply
397.42x = 548.22 × 250 - Step 4: Simplify right side
397.42x = 137,055 - Step 5: Solve for x
x = 137,055/397.42 - Step 6: Final answer
x = 344.86
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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.