Finding the Fourth Proportional to 263,785.65, 395,733.84 and 86,278.80
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Solution
The fourth proportional to 263,785.65, 395,733.84 and 86,278.80 is: 129,436.31
Step by Step Solution
- Step 1: Write the proportion equation
263,785.65 : 395,733.84 = 86,278.80 : x - Step 2: Convert to fraction form
263,785.65/395,733.84 = 86,278.80/x - Step 3: Cross multiply
263,785.65x = 395,733.84 × 86,278.80 - Step 4: Simplify right side
263,785.65x = 34,143,441,995.05 - Step 5: Solve for x
x = 34,143,441,995.05/263,785.65 - Step 6: Final answer
x = 129,436.31
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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.