Finding the Fourth Proportional to 263,340.36, 363,407.11 and 142,479.00
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Solution
The fourth proportional to 263,340.36, 363,407.11 and 142,479.00 is: 196,619.61
Step by Step Solution
- Step 1: Write the proportion equation
263,340.36 : 363,407.11 = 142,479.00 : x - Step 2: Convert to fraction form
263,340.36/363,407.11 = 142,479.00/x - Step 3: Cross multiply
263,340.36x = 363,407.11 × 142,479.00 - Step 4: Simplify right side
263,340.36x = 51,777,879,808.65 - Step 5: Solve for x
x = 51,777,879,808.65/263,340.36 - Step 6: Final answer
x = 196,619.61
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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.