Finding the Fourth Proportional to 311,984.11, 467,866.68 and 87,284.17
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Solution
The fourth proportional to 311,984.11, 467,866.68 and 87,284.17 is: 130,895.62
Step by Step Solution
- Step 1: Write the proportion equation
311,984.11 : 467,866.68 = 87,284.17 : x - Step 2: Convert to fraction form
311,984.11/467,866.68 = 87,284.17/x - Step 3: Cross multiply
311,984.11x = 467,866.68 × 87,284.17 - Step 4: Simplify right side
311,984.11x = 40,837,354,834.46 - Step 5: Solve for x
x = 40,837,354,834.46/311,984.11 - Step 6: Final answer
x = 130,895.62
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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.