Finding the Fourth Proportional to 349.36, 482.12 and 201.96
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Solution
The fourth proportional to 349.36, 482.12 and 201.96 is: 278.71
Step by Step Solution
- Step 1: Write the proportion equation
349.36 : 482.12 = 201.96 : x - Step 2: Convert to fraction form
349.36/482.12 = 201.96/x - Step 3: Cross multiply
349.36x = 482.12 × 201.96 - Step 4: Simplify right side
349.36x = 97,368.96 - Step 5: Solve for x
x = 97,368.96/349.36 - Step 6: Final answer
x = 278.71
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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.