Finding the Fourth Proportional to 311,113.98, 466,648.43 and 121,538.75
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Solution
The fourth proportional to 311,113.98, 466,648.43 and 121,538.75 is: 182,299.31
Step by Step Solution
- Step 1: Write the proportion equation
311,113.98 : 466,648.43 = 121,538.75 : x - Step 2: Convert to fraction form
311,113.98/466,648.43 = 121,538.75/x - Step 3: Cross multiply
311,113.98x = 466,648.43 × 121,538.75 - Step 4: Simplify right side
311,113.98x = 56,715,863,930.73 - Step 5: Solve for x
x = 56,715,863,930.73/311,113.98 - Step 6: Final answer
x = 182,299.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.