Finding the Fourth Proportional to 321,028.08, 481,606.92 and 221,236.08
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Solution
The fourth proportional to 321,028.08, 481,606.92 and 221,236.08 is: 331,898.78
Step by Step Solution
- Step 1: Write the proportion equation
321,028.08 : 481,606.92 = 221,236.08 : x - Step 2: Convert to fraction form
321,028.08/481,606.92 = 221,236.08/x - Step 3: Cross multiply
321,028.08x = 481,606.92 × 221,236.08 - Step 4: Simplify right side
321,028.08x = 106,548,827,081.67 - Step 5: Solve for x
x = 106,548,827,081.67/321,028.08 - Step 6: Final answer
x = 331,898.78
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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.