Finding the Fourth Proportional to 384,379.13, 576,375.12 and 128,120.94
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Solution
The fourth proportional to 384,379.13, 576,375.12 and 128,120.94 is: 192,116.89
Step by Step Solution
- Step 1: Write the proportion equation
384,379.13 : 576,375.12 = 128,120.94 : x - Step 2: Convert to fraction form
384,379.13/576,375.12 = 128,120.94/x - Step 3: Cross multiply
384,379.13x = 576,375.12 × 128,120.94 - Step 4: Simplify right side
384,379.13x = 73,845,722,167.01 - Step 5: Solve for x
x = 73,845,722,167.01/384,379.13 - Step 6: Final answer
x = 192,116.89
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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.