Finding the Fourth Proportional to 395,714.24, 593,308.92 and 129,381.44
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Solution
The fourth proportional to 395,714.24, 593,308.92 and 129,381.44 is: 193,986.35
Step by Step Solution
- Step 1: Write the proportion equation
395,714.24 : 593,308.92 = 129,381.44 : x - Step 2: Convert to fraction form
395,714.24/593,308.92 = 129,381.44/x - Step 3: Cross multiply
395,714.24x = 593,308.92 × 129,381.44 - Step 4: Simplify right side
395,714.24x = 76,763,162,434.44 - Step 5: Solve for x
x = 76,763,162,434.44/395,714.24 - Step 6: Final answer
x = 193,986.35
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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.