Finding the Fourth Proportional to 396,310.20, 594,537.30 and 129,996.60
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Solution
The fourth proportional to 396,310.20, 594,537.30 and 129,996.60 is: 195,018.52
Step by Step Solution
- Step 1: Write the proportion equation
396,310.20 : 594,537.30 = 129,996.60 : x - Step 2: Convert to fraction form
396,310.20/594,537.30 = 129,996.60/x - Step 3: Cross multiply
396,310.20x = 594,537.30 × 129,996.60 - Step 4: Simplify right side
396,310.20x = 77,287,827,573.18 - Step 5: Solve for x
x = 77,287,827,573.18/396,310.20 - Step 6: Final answer
x = 195,018.52
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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.