Finding the Fourth Proportional to 311,956.97, 430,515.95 and 175,988.16
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Solution
The fourth proportional to 311,956.97, 430,515.95 and 175,988.16 is: 242,872.31
Step by Step Solution
- Step 1: Write the proportion equation
311,956.97 : 430,515.95 = 175,988.16 : x - Step 2: Convert to fraction form
311,956.97/430,515.95 = 175,988.16/x - Step 3: Cross multiply
311,956.97x = 430,515.95 × 175,988.16 - Step 4: Simplify right side
311,956.97x = 75,765,709,011.21 - Step 5: Solve for x
x = 75,765,709,011.21/311,956.97 - Step 6: Final answer
x = 242,872.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.