Finding the Fourth Proportional to 349.11, 523.26 and 129.55
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Solution
The fourth proportional to 349.11, 523.26 and 129.55 is: 194.17
Step by Step Solution
- Step 1: Write the proportion equation
349.11 : 523.26 = 129.55 : x - Step 2: Convert to fraction form
349.11/523.26 = 129.55/x - Step 3: Cross multiply
349.11x = 523.26 × 129.55 - Step 4: Simplify right side
349.11x = 67,788.01 - Step 5: Solve for x
x = 67,788.01/349.11 - Step 6: Final answer
x = 194.17
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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.