Finding the Fourth Proportional to 395,714.20, 593,571.30 and 143,115.70
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Solution
The fourth proportional to 395,714.20, 593,571.30 and 143,115.70 is: 214,673.55
Step by Step Solution
- Step 1: Write the proportion equation
395,714.20 : 593,571.30 = 143,115.70 : x - Step 2: Convert to fraction form
395,714.20/593,571.30 = 143,115.70/x - Step 3: Cross multiply
395,714.20x = 593,571.30 × 143,115.70 - Step 4: Simplify right side
395,714.20x = 84,949,372,099.41 - Step 5: Solve for x
x = 84,949,372,099.41/395,714.20 - Step 6: Final answer
x = 214,673.55
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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.