Finding the Fourth Proportional to 386,375.80, 533,147.80 and 214,291.70
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Solution
The fourth proportional to 386,375.80, 533,147.80 and 214,291.70 is: 295,694.37
Step by Step Solution
- Step 1: Write the proportion equation
386,375.80 : 533,147.80 = 214,291.70 : x - Step 2: Convert to fraction form
386,375.80/533,147.80 = 214,291.70/x - Step 3: Cross multiply
386,375.80x = 533,147.80 × 214,291.70 - Step 4: Simplify right side
386,375.80x = 114,249,148,413.26 - Step 5: Solve for x
x = 114,249,148,413.26/386,375.80 - Step 6: Final answer
x = 295,694.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.