Finding the Fourth Proportional to 349.11, 482.19 and 276.39
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Solution
The fourth proportional to 349.11, 482.19 and 276.39 is: 381.75
Step by Step Solution
- Step 1: Write the proportion equation
349.11 : 482.19 = 276.39 : x - Step 2: Convert to fraction form
349.11/482.19 = 276.39/x - Step 3: Cross multiply
349.11x = 482.19 × 276.39 - Step 4: Simplify right side
349.11x = 133,272.49 - Step 5: Solve for x
x = 133,272.49/349.11 - Step 6: Final answer
x = 381.75
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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.