Finding the Fourth Proportional to 392,005.83, 587,867.55 and 135,768.99
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Solution
The fourth proportional to 392,005.83, 587,867.55 and 135,768.99 is: 203,604.58
Step by Step Solution
- Step 1: Write the proportion equation
392,005.83 : 587,867.55 = 135,768.99 : x - Step 2: Convert to fraction form
392,005.83/587,867.55 = 135,768.99/x - Step 3: Cross multiply
392,005.83x = 587,867.55 × 135,768.99 - Step 4: Simplify right side
392,005.83x = 79,814,183,517.27 - Step 5: Solve for x
x = 79,814,183,517.27/392,005.83 - Step 6: Final answer
x = 203,604.58
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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.