Finding the Fourth Proportional to 298,557.44, 445,651.84 and 263,129.28
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Solution
The fourth proportional to 298,557.44, 445,651.84 and 263,129.28 is: 392,768.80
Step by Step Solution
- Step 1: Write the proportion equation
298,557.44 : 445,651.84 = 263,129.28 : x - Step 2: Convert to fraction form
298,557.44/445,651.84 = 263,129.28/x - Step 3: Cross multiply
298,557.44x = 445,651.84 × 263,129.28 - Step 4: Simplify right side
298,557.44x = 117,264,047,789.88 - Step 5: Solve for x
x = 117,264,047,789.88/298,557.44 - Step 6: Final answer
x = 392,768.80
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.