Finding the Fourth Proportional to 208,464.07, 287,779.60 and 139,671.99
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Solution
The fourth proportional to 208,464.07, 287,779.60 and 139,671.99 is: 192,813.80
Step by Step Solution
- Step 1: Write the proportion equation
208,464.07 : 287,779.60 = 139,671.99 : x - Step 2: Convert to fraction form
208,464.07/287,779.60 = 139,671.99/x - Step 3: Cross multiply
208,464.07x = 287,779.60 × 139,671.99 - Step 4: Simplify right side
208,464.07x = 40,194,749,413.40 - Step 5: Solve for x
x = 40,194,749,413.40/208,464.07 - Step 6: Final answer
x = 192,813.80
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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.