Finding the Fourth Proportional to 387.26, 580.97 and 348.53
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Solution
The fourth proportional to 387.26, 580.97 and 348.53 is: 522.87
Step by Step Solution
- Step 1: Write the proportion equation
387.26 : 580.97 = 348.53 : x - Step 2: Convert to fraction form
387.26/580.97 = 348.53/x - Step 3: Cross multiply
387.26x = 580.97 × 348.53 - Step 4: Simplify right side
387.26x = 202,486.06 - Step 5: Solve for x
x = 202,486.06/387.26 - Step 6: Final answer
x = 522.87
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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.