Finding the Fourth Proportional to 325.14, 487.70 and 132.63
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Solution
The fourth proportional to 325.14, 487.70 and 132.63 is: 198.94
Step by Step Solution
- Step 1: Write the proportion equation
325.14 : 487.70 = 132.63 : x - Step 2: Convert to fraction form
325.14/487.70 = 132.63/x - Step 3: Cross multiply
325.14x = 487.70 × 132.63 - Step 4: Simplify right side
325.14x = 64,683.65 - Step 5: Solve for x
x = 64,683.65/325.14 - Step 6: Final answer
x = 198.94
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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.