Finding the Fourth Proportional to 288,213.14, 397,740.84 and 180,787.70
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Solution
The fourth proportional to 288,213.14, 397,740.84 and 180,787.70 is: 249,491.23
Step by Step Solution
- Step 1: Write the proportion equation
288,213.14 : 397,740.84 = 180,787.70 : x - Step 2: Convert to fraction form
288,213.14/397,740.84 = 180,787.70/x - Step 3: Cross multiply
288,213.14x = 397,740.84 × 180,787.70 - Step 4: Simplify right side
288,213.14x = 71,906,651,659.67 - Step 5: Solve for x
x = 71,906,651,659.67/288,213.14 - Step 6: Final answer
x = 249,491.23
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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.