Finding the Fourth Proportional to 434,635.20, 652,147.20 and 209,908.80
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Solution
The fourth proportional to 434,635.20, 652,147.20 and 209,908.80 is: 314,957.09
Step by Step Solution
- Step 1: Write the proportion equation
434,635.20 : 652,147.20 = 209,908.80 : x - Step 2: Convert to fraction form
434,635.20/652,147.20 = 209,908.80/x - Step 3: Cross multiply
434,635.20x = 652,147.20 × 209,908.80 - Step 4: Simplify right side
434,635.20x = 136,891,436,175.36 - Step 5: Solve for x
x = 136,891,436,175.36/434,635.20 - Step 6: Final answer
x = 314,957.09
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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.