Finding the Fourth Proportional to 317,847.92, 477,188.58 and 213,135.44
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Solution
The fourth proportional to 317,847.92, 477,188.58 and 213,135.44 is: 319,982.58
Step by Step Solution
- Step 1: Write the proportion equation
317,847.92 : 477,188.58 = 213,135.44 : x - Step 2: Convert to fraction form
317,847.92/477,188.58 = 213,135.44/x - Step 3: Cross multiply
317,847.92x = 477,188.58 × 213,135.44 - Step 4: Simplify right side
317,847.92x = 101,705,797,961.28 - Step 5: Solve for x
x = 101,705,797,961.28/317,847.92 - Step 6: Final answer
x = 319,982.58
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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.