Finding the Fourth Proportional to 351.20, 484.36 and 252.80
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Solution
The fourth proportional to 351.20, 484.36 and 252.80 is: 348.65
Step by Step Solution
- Step 1: Write the proportion equation
351.20 : 484.36 = 252.80 : x - Step 2: Convert to fraction form
351.20/484.36 = 252.80/x - Step 3: Cross multiply
351.20x = 484.36 × 252.80 - Step 4: Simplify right side
351.20x = 122,446.21 - Step 5: Solve for x
x = 122,446.21/351.20 - Step 6: Final answer
x = 348.65
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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.