Finding the Fourth Proportional to 392,451.75, 588,765.38 and 143,133.75
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Solution
The fourth proportional to 392,451.75, 588,765.38 and 143,133.75 is: 214,732.63
Step by Step Solution
- Step 1: Write the proportion equation
392,451.75 : 588,765.38 = 143,133.75 : x - Step 2: Convert to fraction form
392,451.75/588,765.38 = 143,133.75/x - Step 3: Cross multiply
392,451.75x = 588,765.38 × 143,133.75 - Step 4: Simplify right side
392,451.75x = 84,272,195,993.91 - Step 5: Solve for x
x = 84,272,195,993.91/392,451.75 - Step 6: Final answer
x = 214,732.63
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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.