Finding the Fourth Proportional to 328,439.01, 492,422.09 and 201,817.65
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Solution
The fourth proportional to 328,439.01, 492,422.09 and 201,817.65 is: 302,581.20
Step by Step Solution
- Step 1: Write the proportion equation
328,439.01 : 492,422.09 = 201,817.65 : x - Step 2: Convert to fraction form
328,439.01/492,422.09 = 201,817.65/x - Step 3: Cross multiply
328,439.01x = 492,422.09 × 201,817.65 - Step 4: Simplify right side
328,439.01x = 99,379,469,849.38 - Step 5: Solve for x
x = 99,379,469,849.38/328,439.01 - Step 6: Final answer
x = 302,581.20
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1.5x scale
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.