Finding the Fourth Proportional to 231,482.07, 347,134.95 and 81,694.44
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Solution
The fourth proportional to 231,482.07, 347,134.95 and 81,694.44 is: 122,510.55
Step by Step Solution
- Step 1: Write the proportion equation
231,482.07 : 347,134.95 = 81,694.44 : x - Step 2: Convert to fraction form
231,482.07/347,134.95 = 81,694.44/x - Step 3: Cross multiply
231,482.07x = 347,134.95 × 81,694.44 - Step 4: Simplify right side
231,482.07x = 28,358,995,344.68 - Step 5: Solve for x
x = 28,358,995,344.68/231,482.07 - Step 6: Final answer
x = 122,510.55
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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.