Finding the Fourth Proportional to 323.98, 485.68 and 201.98
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Solution
The fourth proportional to 323.98, 485.68 and 201.98 is: 302.79
Step by Step Solution
- Step 1: Write the proportion equation
323.98 : 485.68 = 201.98 : x - Step 2: Convert to fraction form
323.98/485.68 = 201.98/x - Step 3: Cross multiply
323.98x = 485.68 × 201.98 - Step 4: Simplify right side
323.98x = 98,097.65 - Step 5: Solve for x
x = 98,097.65/323.98 - Step 6: Final answer
x = 302.79
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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.