Finding the Fourth Proportional to 228,815.24, 315,415.01 and 160,640.96
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Solution
The fourth proportional to 228,815.24, 315,415.01 and 160,640.96 is: 221,438.79
Step by Step Solution
- Step 1: Write the proportion equation
228,815.24 : 315,415.01 = 160,640.96 : x - Step 2: Convert to fraction form
228,815.24/315,415.01 = 160,640.96/x - Step 3: Cross multiply
228,815.24x = 315,415.01 × 160,640.96 - Step 4: Simplify right side
228,815.24x = 50,668,570,004.81 - Step 5: Solve for x
x = 50,668,570,004.81/228,815.24 - Step 6: Final answer
x = 221,438.79
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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.