Finding the Fourth Proportional to 311,865.42, 430,372.19 and 175,900.49
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Solution
The fourth proportional to 311,865.42, 430,372.19 and 175,900.49 is: 242,741.49
Step by Step Solution
- Step 1: Write the proportion equation
311,865.42 : 430,372.19 = 175,900.49 : x - Step 2: Convert to fraction form
311,865.42/430,372.19 = 175,900.49/x - Step 3: Cross multiply
311,865.42x = 430,372.19 × 175,900.49 - Step 4: Simplify right side
311,865.42x = 75,702,676,072.01 - Step 5: Solve for x
x = 75,702,676,072.01/311,865.42 - Step 6: Final answer
x = 242,741.49
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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.