Finding the Fourth Proportional to 400.28, 552.08 and 252.88
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Solution
The fourth proportional to 400.28, 552.08 and 252.88 is: 348.78
Step by Step Solution
- Step 1: Write the proportion equation
400.28 : 552.08 = 252.88 : x - Step 2: Convert to fraction form
400.28/552.08 = 252.88/x - Step 3: Cross multiply
400.28x = 552.08 × 252.88 - Step 4: Simplify right side
400.28x = 139,609.24 - Step 5: Solve for x
x = 139,609.24/400.28 - Step 6: Final answer
x = 348.78
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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.