Finding the Fourth Proportional to 325.13, 487.79 and 187.93
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Solution
The fourth proportional to 325.13, 487.79 and 187.93 is: 281.95
Step by Step Solution
- Step 1: Write the proportion equation
325.13 : 487.79 = 187.93 : x - Step 2: Convert to fraction form
325.13/487.79 = 187.93/x - Step 3: Cross multiply
325.13x = 487.79 × 187.93 - Step 4: Simplify right side
325.13x = 91,669.63 - Step 5: Solve for x
x = 91,669.63/325.13 - Step 6: Final answer
x = 281.95
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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.