Finding the Fourth Proportional to 311,789.68, 430,237.52 and 230,161.31
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Solution
The fourth proportional to 311,789.68, 430,237.52 and 230,161.31 is: 317,598.80
Step by Step Solution
- Step 1: Write the proportion equation
311,789.68 : 430,237.52 = 230,161.31 : x - Step 2: Convert to fraction form
311,789.68/430,237.52 = 230,161.31/x - Step 3: Cross multiply
311,789.68x = 430,237.52 × 230,161.31 - Step 4: Simplify right side
311,789.68x = 99,024,027,912.36 - Step 5: Solve for x
x = 99,024,027,912.36/311,789.68 - Step 6: Final answer
x = 317,598.80
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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.