Finding the Fourth Proportional to 393.44, 590.08 and 149.92
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Solution
The fourth proportional to 393.44, 590.08 and 149.92 is: 224.85
Step by Step Solution
- Step 1: Write the proportion equation
393.44 : 590.08 = 149.92 : x - Step 2: Convert to fraction form
393.44/590.08 = 149.92/x - Step 3: Cross multiply
393.44x = 590.08 × 149.92 - Step 4: Simplify right side
393.44x = 88,464.79 - Step 5: Solve for x
x = 88,464.79/393.44 - Step 6: Final answer
x = 224.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.