Finding the Fourth Proportional to 259,028.99, 388,808.51 and 213,906.62
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Solution
The fourth proportional to 259,028.99, 388,808.51 and 213,906.62 is: 321,078.79
Step by Step Solution
- Step 1: Write the proportion equation
259,028.99 : 388,808.51 = 213,906.62 : x - Step 2: Convert to fraction form
259,028.99/388,808.51 = 213,906.62/x - Step 3: Cross multiply
259,028.99x = 388,808.51 × 213,906.62 - Step 4: Simplify right side
259,028.99x = 83,168,714,103.82 - Step 5: Solve for x
x = 83,168,714,103.82/259,028.99 - Step 6: Final answer
x = 321,078.79
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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.