Finding the Fourth Proportional to 356,115.84, 491,439.62 and 194,970.84
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Solution
The fourth proportional to 356,115.84, 491,439.62 and 194,970.84 is: 269,059.63
Step by Step Solution
- Step 1: Write the proportion equation
356,115.84 : 491,439.62 = 194,970.84 : x - Step 2: Convert to fraction form
356,115.84/491,439.62 = 194,970.84/x - Step 3: Cross multiply
356,115.84x = 491,439.62 × 194,970.84 - Step 4: Simplify right side
356,115.84x = 95,816,394,545.83 - Step 5: Solve for x
x = 95,816,394,545.83/356,115.84 - Step 6: Final answer
x = 269,059.63
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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.