Finding the Fourth Proportional to 349.24, 523.91 and 129.87
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Solution
The fourth proportional to 349.24, 523.91 and 129.87 is: 194.82
Step by Step Solution
- Step 1: Write the proportion equation
349.24 : 523.91 = 129.87 : x - Step 2: Convert to fraction form
349.24/523.91 = 129.87/x - Step 3: Cross multiply
349.24x = 523.91 × 129.87 - Step 4: Simplify right side
349.24x = 68,040.19 - Step 5: Solve for x
x = 68,040.19/349.24 - Step 6: Final answer
x = 194.82
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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.