Finding the Fourth Proportional to 440.44, 659.70 and 257.26
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Solution
The fourth proportional to 440.44, 659.70 and 257.26 is: 385.33
Step by Step Solution
- Step 1: Write the proportion equation
440.44 : 659.70 = 257.26 : x - Step 2: Convert to fraction form
440.44/659.70 = 257.26/x - Step 3: Cross multiply
440.44x = 659.70 × 257.26 - Step 4: Simplify right side
440.44x = 169,714.42 - Step 5: Solve for x
x = 169,714.42/440.44 - Step 6: Final answer
x = 385.33
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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.