Finding the Fourth Proportional to 278,121.26, 416,934.36 and 100,588.83
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Solution
The fourth proportional to 278,121.26, 416,934.36 and 100,588.83 is: 150,793.72
Step by Step Solution
- Step 1: Write the proportion equation
278,121.26 : 416,934.36 = 100,588.83 : x - Step 2: Convert to fraction form
278,121.26/416,934.36 = 100,588.83/x - Step 3: Cross multiply
278,121.26x = 416,934.36 × 100,588.83 - Step 4: Simplify right side
278,121.26x = 41,938,939,459.20 - Step 5: Solve for x
x = 41,938,939,459.20/278,121.26 - Step 6: Final answer
x = 150,793.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.