Finding the Fourth Proportional to 366,413.09, 549,620.87 and 129,762.68
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Solution
The fourth proportional to 366,413.09, 549,620.87 and 129,762.68 is: 194,644.45
Step by Step Solution
- Step 1: Write the proportion equation
366,413.09 : 549,620.87 = 129,762.68 : x - Step 2: Convert to fraction form
366,413.09/549,620.87 = 129,762.68/x - Step 3: Cross multiply
366,413.09x = 549,620.87 × 129,762.68 - Step 4: Simplify right side
366,413.09x = 71,320,273,678.21 - Step 5: Solve for x
x = 71,320,273,678.21/366,413.09 - Step 6: Final answer
x = 194,644.45
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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.