Finding the Fourth Proportional to 378,786.48, 568,032.16 and 142,000.08
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Solution
The fourth proportional to 378,786.48, 568,032.16 and 142,000.08 is: 212,944.80
Step by Step Solution
- Step 1: Write the proportion equation
378,786.48 : 568,032.16 = 142,000.08 : x - Step 2: Convert to fraction form
378,786.48/568,032.16 = 142,000.08/x - Step 3: Cross multiply
378,786.48x = 568,032.16 × 142,000.08 - Step 4: Simplify right side
378,786.48x = 80,660,612,162.57 - Step 5: Solve for x
x = 80,660,612,162.57/378,786.48 - Step 6: Final answer
x = 212,944.80
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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.