Finding the Fourth Proportional to 311,983.11, 467,865.18 and 87,283.17
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Solution
The fourth proportional to 311,983.11, 467,865.18 and 87,283.17 is: 130,894.12
Step by Step Solution
- Step 1: Write the proportion equation
311,983.11 : 467,865.18 = 87,283.17 : x - Step 2: Convert to fraction form
311,983.11/467,865.18 = 87,283.17/x - Step 3: Cross multiply
311,983.11x = 467,865.18 × 87,283.17 - Step 4: Simplify right side
311,983.11x = 40,836,756,043.02 - Step 5: Solve for x
x = 40,836,756,043.02/311,983.11 - Step 6: Final answer
x = 130,894.12
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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.