Finding the Fourth Proportional to 228,846.15, 315,815.36 and 126,865.53
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Solution
The fourth proportional to 228,846.15, 315,815.36 and 126,865.53 is: 175,078.69
Step by Step Solution
- Step 1: Write the proportion equation
228,846.15 : 315,815.36 = 126,865.53 : x - Step 2: Convert to fraction form
228,846.15/315,815.36 = 126,865.53/x - Step 3: Cross multiply
228,846.15x = 315,815.36 × 126,865.53 - Step 4: Simplify right side
228,846.15x = 40,066,083,028.54 - Step 5: Solve for x
x = 40,066,083,028.54/228,846.15 - Step 6: Final answer
x = 175,078.69
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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.