Finding the Fourth Proportional to 378,952.64, 568,310.48 and 126,174.08
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Solution
The fourth proportional to 378,952.64, 568,310.48 and 126,174.08 is: 189,221.67
Step by Step Solution
- Step 1: Write the proportion equation
378,952.64 : 568,310.48 = 126,174.08 : x - Step 2: Convert to fraction form
378,952.64/568,310.48 = 126,174.08/x - Step 3: Cross multiply
378,952.64x = 568,310.48 × 126,174.08 - Step 4: Simplify right side
378,952.64x = 71,706,051,968.36 - Step 5: Solve for x
x = 71,706,051,968.36/378,952.64 - Step 6: Final answer
x = 189,221.67
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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.