Finding the Fourth Proportional to 278,859.36, 418,289.04 and 68,497.23
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Solution
The fourth proportional to 278,859.36, 418,289.04 and 68,497.23 is: 102,745.85
Step by Step Solution
- Step 1: Write the proportion equation
278,859.36 : 418,289.04 = 68,497.23 : x - Step 2: Convert to fraction form
278,859.36/418,289.04 = 68,497.23/x - Step 3: Cross multiply
278,859.36x = 418,289.04 × 68,497.23 - Step 4: Simplify right side
278,859.36x = 28,651,640,579.36 - Step 5: Solve for x
x = 28,651,640,579.36/278,859.36 - Step 6: Final answer
x = 102,745.85
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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.