Finding the Fourth Proportional to 275,287.96, 379,914.84 and 154,437.08
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Solution
The fourth proportional to 275,287.96, 379,914.84 and 154,437.08 is: 213,132.95
Step by Step Solution
- Step 1: Write the proportion equation
275,287.96 : 379,914.84 = 154,437.08 : x - Step 2: Convert to fraction form
275,287.96/379,914.84 = 154,437.08/x - Step 3: Cross multiply
275,287.96x = 379,914.84 × 154,437.08 - Step 4: Simplify right side
275,287.96x = 58,672,936,638.69 - Step 5: Solve for x
x = 58,672,936,638.69/275,287.96 - Step 6: Final answer
x = 213,132.95
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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.