Finding the Fourth Proportional to 321,828.12, 446,157.18 and 304,765.20
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Solution
The fourth proportional to 321,828.12, 446,157.18 and 304,765.20 is: 422,502.49
Step by Step Solution
- Step 1: Write the proportion equation
321,828.12 : 446,157.18 = 304,765.20 : x - Step 2: Convert to fraction form
321,828.12/446,157.18 = 304,765.20/x - Step 3: Cross multiply
321,828.12x = 446,157.18 × 304,765.20 - Step 4: Simplify right side
321,828.12x = 135,973,182,194.14 - Step 5: Solve for x
x = 135,973,182,194.14/321,828.12 - Step 6: Final answer
x = 422,502.49
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.