Finding the Fourth Proportional to 422,625.65, 633,882.99 and 209,310.53
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Solution
The fourth proportional to 422,625.65, 633,882.99 and 209,310.53 is: 313,938.32
Step by Step Solution
- Step 1: Write the proportion equation
422,625.65 : 633,882.99 = 209,310.53 : x - Step 2: Convert to fraction form
422,625.65/633,882.99 = 209,310.53/x - Step 3: Cross multiply
422,625.65x = 633,882.99 × 209,310.53 - Step 4: Simplify right side
422,625.65x = 132,678,384,594.89 - Step 5: Solve for x
x = 132,678,384,594.89/422,625.65 - Step 6: Final answer
x = 313,938.32
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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.