Finding the Fourth Proportional to 202,987.20, 304,553.70 and 84,694.80
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Solution
The fourth proportional to 202,987.20, 304,553.70 and 84,694.80 is: 127,072.62
Step by Step Solution
- Step 1: Write the proportion equation
202,987.20 : 304,553.70 = 84,694.80 : x - Step 2: Convert to fraction form
202,987.20/304,553.70 = 84,694.80/x - Step 3: Cross multiply
202,987.20x = 304,553.70 × 84,694.80 - Step 4: Simplify right side
202,987.20x = 25,794,114,710.76 - Step 5: Solve for x
x = 25,794,114,710.76/202,987.20 - Step 6: Final answer
x = 127,072.62
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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.