Finding the Fourth Proportional to 278,569.46, 417,911.97 and 126,694.19
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Solution
The fourth proportional to 278,569.46, 417,911.97 and 126,694.19 is: 190,067.56
Step by Step Solution
- Step 1: Write the proportion equation
278,569.46 : 417,911.97 = 126,694.19 : x - Step 2: Convert to fraction form
278,569.46/417,911.97 = 126,694.19/x - Step 3: Cross multiply
278,569.46x = 417,911.97 × 126,694.19 - Step 4: Simplify right side
278,569.46x = 52,947,018,530.45 - Step 5: Solve for x
x = 52,947,018,530.45/278,569.46 - Step 6: Final answer
x = 190,067.56
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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.