Finding the Fourth Proportional to 281,229.41, 388,120.83 and 160,375.79
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Solution
The fourth proportional to 281,229.41, 388,120.83 and 160,375.79 is: 221,332.42
Step by Step Solution
- Step 1: Write the proportion equation
281,229.41 : 388,120.83 = 160,375.79 : x - Step 2: Convert to fraction form
281,229.41/388,120.83 = 160,375.79/x - Step 3: Cross multiply
281,229.41x = 388,120.83 × 160,375.79 - Step 4: Simplify right side
281,229.41x = 62,245,184,726.71 - Step 5: Solve for x
x = 62,245,184,726.71/281,229.41 - Step 6: Final answer
x = 221,332.42
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1.5x scale
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.