Finding the Fourth Proportional to 323,883.99, 485,709.33 and 136,910.07
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Solution
The fourth proportional to 323,883.99, 485,709.33 and 136,910.07 is: 205,315.79
Step by Step Solution
- Step 1: Write the proportion equation
323,883.99 : 485,709.33 = 136,910.07 : x - Step 2: Convert to fraction form
323,883.99/485,709.33 = 136,910.07/x - Step 3: Cross multiply
323,883.99x = 485,709.33 × 136,910.07 - Step 4: Simplify right side
323,883.99x = 66,498,498,369.95 - Step 5: Solve for x
x = 66,498,498,369.95/323,883.99 - Step 6: Final answer
x = 205,315.79
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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.