Finding the Fourth Proportional to 349.07, 481.80 and 201.80
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Solution
The fourth proportional to 349.07, 481.80 and 201.80 is: 278.53
Step by Step Solution
- Step 1: Write the proportion equation
349.07 : 481.80 = 201.80 : x - Step 2: Convert to fraction form
349.07/481.80 = 201.80/x - Step 3: Cross multiply
349.07x = 481.80 × 201.80 - Step 4: Simplify right side
349.07x = 97,227.24 - Step 5: Solve for x
x = 97,227.24/349.07 - Step 6: Final answer
x = 278.53
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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.