Finding the Fourth Proportional to 323,912.99, 485,898.64 and 87,250.43
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Solution
The fourth proportional to 323,912.99, 485,898.64 and 87,250.43 is: 130,883.50
Step by Step Solution
- Step 1: Write the proportion equation
323,912.99 : 485,898.64 = 87,250.43 : x - Step 2: Convert to fraction form
323,912.99/485,898.64 = 87,250.43/x - Step 3: Cross multiply
323,912.99x = 485,898.64 × 87,250.43 - Step 4: Simplify right side
323,912.99x = 42,394,866,273.04 - Step 5: Solve for x
x = 42,394,866,273.04/323,912.99 - Step 6: Final answer
x = 130,883.50
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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.