Finding the Fourth Proportional to 339.26, 509.68 and 325.43
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Solution
The fourth proportional to 339.26, 509.68 and 325.43 is: 488.90
Step by Step Solution
- Step 1: Write the proportion equation
339.26 : 509.68 = 325.43 : x - Step 2: Convert to fraction form
339.26/509.68 = 325.43/x - Step 3: Cross multiply
339.26x = 509.68 × 325.43 - Step 4: Simplify right side
339.26x = 165,865.19 - Step 5: Solve for x
x = 165,865.19/339.26 - Step 6: Final answer
x = 488.90
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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.