Finding the Fourth Proportional to 258,662.30, 356,922.62 and 143,913.84
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Solution
The fourth proportional to 258,662.30, 356,922.62 and 143,913.84 is: 198,583.66
Step by Step Solution
- Step 1: Write the proportion equation
258,662.30 : 356,922.62 = 143,913.84 : x - Step 2: Convert to fraction form
258,662.30/356,922.62 = 143,913.84/x - Step 3: Cross multiply
258,662.30x = 356,922.62 × 143,913.84 - Step 4: Simplify right side
258,662.30x = 51,366,104,107.49 - Step 5: Solve for x
x = 51,366,104,107.49/258,662.30 - Step 6: Final answer
x = 198,583.66
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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.