Finding the Fourth Proportional to 311,900.20, 467,850.30 and 125,045.80
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Solution
The fourth proportional to 311,900.20, 467,850.30 and 125,045.80 is: 187,568.70
Step by Step Solution
- Step 1: Write the proportion equation
311,900.20 : 467,850.30 = 125,045.80 : x - Step 2: Convert to fraction form
311,900.20/467,850.30 = 125,045.80/x - Step 3: Cross multiply
311,900.20x = 467,850.30 × 125,045.80 - Step 4: Simplify right side
311,900.20x = 58,502,715,043.74 - Step 5: Solve for x
x = 58,502,715,043.74/311,900.20 - Step 6: Final answer
x = 187,568.70
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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.