Finding the Fourth Proportional to 261,235.41, 391,857.97 and 74,251.77
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Solution
The fourth proportional to 261,235.41, 391,857.97 and 74,251.77 is: 111,379.03
Step by Step Solution
- Step 1: Write the proportion equation
261,235.41 : 391,857.97 = 74,251.77 : x - Step 2: Convert to fraction form
261,235.41/391,857.97 = 74,251.77/x - Step 3: Cross multiply
261,235.41x = 391,857.97 × 74,251.77 - Step 4: Simplify right side
261,235.41x = 29,096,146,345.23 - Step 5: Solve for x
x = 29,096,146,345.23/261,235.41 - Step 6: Final answer
x = 111,379.03
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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.