Finding the Fourth Proportional to 311,589.63, 467,463.12 and 86,949.90
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Solution
The fourth proportional to 311,589.63, 467,463.12 and 86,949.90 is: 130,446.80
Step by Step Solution
- Step 1: Write the proportion equation
311,589.63 : 467,463.12 = 86,949.90 : x - Step 2: Convert to fraction form
311,589.63/467,463.12 = 86,949.90/x - Step 3: Cross multiply
311,589.63x = 467,463.12 × 86,949.90 - Step 4: Simplify right side
311,589.63x = 40,645,871,537.69 - Step 5: Solve for x
x = 40,645,871,537.69/311,589.63 - Step 6: Final answer
x = 130,446.80
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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.