Finding the Fourth Proportional to 311,704.56, 430,208.40 and 175,780.08
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Solution
The fourth proportional to 311,704.56, 430,208.40 and 175,780.08 is: 242,608.15
Step by Step Solution
- Step 1: Write the proportion equation
311,704.56 : 430,208.40 = 175,780.08 : x - Step 2: Convert to fraction form
311,704.56/430,208.40 = 175,780.08/x - Step 3: Cross multiply
311,704.56x = 430,208.40 × 175,780.08 - Step 4: Simplify right side
311,704.56x = 75,622,066,968.67 - Step 5: Solve for x
x = 75,622,066,968.67/311,704.56 - Step 6: Final answer
x = 242,608.15
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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.