Finding the Fourth Proportional to 392,950.80, 589,037.40 and 193,107.60
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Solution
The fourth proportional to 392,950.80, 589,037.40 and 193,107.60 is: 289,470.33
Step by Step Solution
- Step 1: Write the proportion equation
392,950.80 : 589,037.40 = 193,107.60 : x - Step 2: Convert to fraction form
392,950.80/589,037.40 = 193,107.60/x - Step 3: Cross multiply
392,950.80x = 589,037.40 × 193,107.60 - Step 4: Simplify right side
392,950.80x = 113,747,598,624.24 - Step 5: Solve for x
x = 113,747,598,624.24/392,950.80 - Step 6: Final answer
x = 289,470.33
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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.