Finding the Fourth Proportional to 392,473.75, 588,798.42 and 143,155.75
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Solution
The fourth proportional to 392,473.75, 588,798.42 and 143,155.75 is: 214,765.65
Step by Step Solution
- Step 1: Write the proportion equation
392,473.75 : 588,798.42 = 143,155.75 : x - Step 2: Convert to fraction form
392,473.75/588,798.42 = 143,155.75/x - Step 3: Cross multiply
392,473.75x = 588,798.42 × 143,155.75 - Step 4: Simplify right side
392,473.75x = 84,289,879,413.92 - Step 5: Solve for x
x = 84,289,879,413.92/392,473.75 - Step 6: Final answer
x = 214,765.65
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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.