Finding the Fourth Proportional to 349.19, 481.65 and 325.75
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Solution
The fourth proportional to 349.19, 481.65 and 325.75 is: 449.32
Step by Step Solution
- Step 1: Write the proportion equation
349.19 : 481.65 = 325.75 : x - Step 2: Convert to fraction form
349.19/481.65 = 325.75/x - Step 3: Cross multiply
349.19x = 481.65 × 325.75 - Step 4: Simplify right side
349.19x = 156,897.49 - Step 5: Solve for x
x = 156,897.49/349.19 - Step 6: Final answer
x = 449.32
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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.