Finding the Fourth Proportional to 305,785.74, 421,982.69 and 167,967.38
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Solution
The fourth proportional to 305,785.74, 421,982.69 and 167,967.38 is: 231,794.09
Step by Step Solution
- Step 1: Write the proportion equation
305,785.74 : 421,982.69 = 167,967.38 : x - Step 2: Convert to fraction form
305,785.74/421,982.69 = 167,967.38/x - Step 3: Cross multiply
305,785.74x = 421,982.69 × 167,967.38 - Step 4: Simplify right side
305,785.74x = 70,879,326,844.65 - Step 5: Solve for x
x = 70,879,326,844.65/305,785.74 - Step 6: Final answer
x = 231,794.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.