Finding the Fourth Proportional to 286,984.44, 396,584.73 and 215,239.91
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Solution
The fourth proportional to 286,984.44, 396,584.73 and 215,239.91 is: 297,440.72
Step by Step Solution
- Step 1: Write the proportion equation
286,984.44 : 396,584.73 = 215,239.91 : x - Step 2: Convert to fraction form
286,984.44/396,584.73 = 215,239.91/x - Step 3: Cross multiply
286,984.44x = 396,584.73 × 215,239.91 - Step 4: Simplify right side
286,984.44x = 85,360,859,609.65 - Step 5: Solve for x
x = 85,360,859,609.65/286,984.44 - Step 6: Final answer
x = 297,440.72
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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.