Finding the Fourth Proportional to 228,863.57, 315,815.16 and 125,481.21
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Solution
The fourth proportional to 228,863.57, 315,815.16 and 125,481.21 is: 173,154.99
Step by Step Solution
- Step 1: Write the proportion equation
228,863.57 : 315,815.16 = 125,481.21 : x - Step 2: Convert to fraction form
228,863.57/315,815.16 = 125,481.21/x - Step 3: Cross multiply
228,863.57x = 315,815.16 × 125,481.21 - Step 4: Simplify right side
228,863.57x = 39,628,868,413.14 - Step 5: Solve for x
x = 39,628,868,413.14/228,863.57 - Step 6: Final answer
x = 173,154.99
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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.