Finding the Fourth Proportional to 349.28, 481.90 and 201.88
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Solution
The fourth proportional to 349.28, 481.90 and 201.88 is: 278.53
Step by Step Solution
- Step 1: Write the proportion equation
349.28 : 481.90 = 201.88 : x - Step 2: Convert to fraction form
349.28/481.90 = 201.88/x - Step 3: Cross multiply
349.28x = 481.90 × 201.88 - Step 4: Simplify right side
349.28x = 97,285.97 - Step 5: Solve for x
x = 97,285.97/349.28 - Step 6: Final answer
x = 278.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.