Finding the Fourth Proportional to 278,375.63, 418,341.05 and 260,451.95
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Solution
The fourth proportional to 278,375.63, 418,341.05 and 260,451.95 is: 391,405.46
Step by Step Solution
- Step 1: Write the proportion equation
278,375.63 : 418,341.05 = 260,451.95 : x - Step 2: Convert to fraction form
278,375.63/418,341.05 = 260,451.95/x - Step 3: Cross multiply
278,375.63x = 418,341.05 × 260,451.95 - Step 4: Simplify right side
278,375.63x = 108,957,738,843.58 - Step 5: Solve for x
x = 108,957,738,843.58/278,375.63 - Step 6: Final answer
x = 391,405.46
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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.