Finding the Fourth Proportional to 278,403.36, 417,601.44 and 68,043.12
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Solution
The fourth proportional to 278,403.36, 417,601.44 and 68,043.12 is: 102,063.80
Step by Step Solution
- Step 1: Write the proportion equation
278,403.36 : 417,601.44 = 68,043.12 : x - Step 2: Convert to fraction form
278,403.36/417,601.44 = 68,043.12/x - Step 3: Cross multiply
278,403.36x = 417,601.44 × 68,043.12 - Step 4: Simplify right side
278,403.36x = 28,414,904,894.09 - Step 5: Solve for x
x = 28,414,904,894.09/278,403.36 - Step 6: Final answer
x = 102,063.80
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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.