Finding the Fourth Proportional to 319,201.44, 477,390.42 and 283,910.36
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Solution
The fourth proportional to 319,201.44, 477,390.42 and 283,910.36 is: 424,609.88
Step by Step Solution
- Step 1: Write the proportion equation
319,201.44 : 477,390.42 = 283,910.36 : x - Step 2: Convert to fraction form
319,201.44/477,390.42 = 283,910.36/x - Step 3: Cross multiply
319,201.44x = 477,390.42 × 283,910.36 - Step 4: Simplify right side
319,201.44x = 135,536,083,615.80 - Step 5: Solve for x
x = 135,536,083,615.80/319,201.44 - Step 6: Final answer
x = 424,609.88
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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.