Finding the Fourth Proportional to 311,865.98, 430,372.97 and 175,901.06
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Solution
The fourth proportional to 311,865.98, 430,372.97 and 175,901.06 is: 242,742.29
Step by Step Solution
- Step 1: Write the proportion equation
311,865.98 : 430,372.97 = 175,901.06 : x - Step 2: Convert to fraction form
311,865.98/430,372.97 = 175,901.06/x - Step 3: Cross multiply
311,865.98x = 430,372.97 × 175,901.06 - Step 4: Simplify right side
311,865.98x = 75,703,061,814.78 - Step 5: Solve for x
x = 75,703,061,814.78/311,865.98 - Step 6: Final answer
x = 242,742.29
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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.