Finding the Fourth Proportional to 378,783.66, 568,027.26 and 141,997.26
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Solution
The fourth proportional to 378,783.66, 568,027.26 and 141,997.26 is: 212,940.32
Step by Step Solution
- Step 1: Write the proportion equation
378,783.66 : 568,027.26 = 141,997.26 : x - Step 2: Convert to fraction form
378,783.66/568,027.26 = 141,997.26/x - Step 3: Cross multiply
378,783.66x = 568,027.26 × 141,997.26 - Step 4: Simplify right side
378,783.66x = 80,658,314,525.31 - Step 5: Solve for x
x = 80,658,314,525.31/378,783.66 - Step 6: Final answer
x = 212,940.32
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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.