Finding the Fourth Proportional to 323.70, 485.19 and 201.79
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Solution
The fourth proportional to 323.70, 485.19 and 201.79 is: 302.47
Step by Step Solution
- Step 1: Write the proportion equation
323.70 : 485.19 = 201.79 : x - Step 2: Convert to fraction form
323.70/485.19 = 201.79/x - Step 3: Cross multiply
323.70x = 485.19 × 201.79 - Step 4: Simplify right side
323.70x = 97,907.10 - Step 5: Solve for x
x = 97,907.10/323.70 - Step 6: Final answer
x = 302.47
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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.