Finding the Fourth Proportional to 311,518.26, 467,270.65 and 86,872.70
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Solution
The fourth proportional to 311,518.26, 467,270.65 and 86,872.70 is: 130,307.17
Step by Step Solution
- Step 1: Write the proportion equation
311,518.26 : 467,270.65 = 86,872.70 : x - Step 2: Convert to fraction form
311,518.26/467,270.65 = 86,872.70/x - Step 3: Cross multiply
311,518.26x = 467,270.65 × 86,872.70 - Step 4: Simplify right side
311,518.26x = 40,593,062,996.26 - Step 5: Solve for x
x = 40,593,062,996.26/311,518.26 - Step 6: Final answer
x = 130,307.17
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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.