Finding the Fourth Proportional to 383.11, 574.88 and 163.71
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Solution
The fourth proportional to 383.11, 574.88 and 163.71 is: 245.65
Step by Step Solution
- Step 1: Write the proportion equation
383.11 : 574.88 = 163.71 : x - Step 2: Convert to fraction form
383.11/574.88 = 163.71/x - Step 3: Cross multiply
383.11x = 574.88 × 163.71 - Step 4: Simplify right side
383.11x = 94,111.24 - Step 5: Solve for x
x = 94,111.24/383.11 - Step 6: Final answer
x = 245.65
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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.