Finding the Fourth Proportional to 311,089.80, 466,634.70 and 305,905.80
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Solution
The fourth proportional to 311,089.80, 466,634.70 and 305,905.80 is: 458,858.70
Step by Step Solution
- Step 1: Write the proportion equation
311,089.80 : 466,634.70 = 305,905.80 : x - Step 2: Convert to fraction form
311,089.80/466,634.70 = 305,905.80/x - Step 3: Cross multiply
311,089.80x = 466,634.70 × 305,905.80 - Step 4: Simplify right side
311,089.80x = 142,746,261,211.26 - Step 5: Solve for x
x = 142,746,261,211.26/311,089.80 - Step 6: Final answer
x = 458,858.70
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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.