Finding the Fourth Proportional to 351.26, 484.77 and 201.90
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Solution
The fourth proportional to 351.26, 484.77 and 201.90 is: 278.64
Step by Step Solution
- Step 1: Write the proportion equation
351.26 : 484.77 = 201.90 : x - Step 2: Convert to fraction form
351.26/484.77 = 201.90/x - Step 3: Cross multiply
351.26x = 484.77 × 201.90 - Step 4: Simplify right side
351.26x = 97,875.06 - Step 5: Solve for x
x = 97,875.06/351.26 - Step 6: Final answer
x = 278.64
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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.