Finding the Fourth Proportional to 379,787.20, 569,713.32 and 99,304
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Solution
The fourth proportional to 379,787.20, 569,713.32 and 99,304 is: 148,964.50
Step by Step Solution
- Step 1: Write the proportion equation
379,787.20 : 569,713.32 = 99,304 : x - Step 2: Convert to fraction form
379,787.20/569,713.32 = 99,304/x - Step 3: Cross multiply
379,787.20x = 569,713.32 × 99,304 - Step 4: Simplify right side
379,787.20x = 56,574,811,529.28 - Step 5: Solve for x
x = 56,574,811,529.28/379,787.20 - Step 6: Final answer
x = 148,964.50
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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.