Finding the Fourth Proportional to 353.10, 529.63 and 121.99
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Solution
The fourth proportional to 353.10, 529.63 and 121.99 is: 182.98
Step by Step Solution
- Step 1: Write the proportion equation
353.10 : 529.63 = 121.99 : x - Step 2: Convert to fraction form
353.10/529.63 = 121.99/x - Step 3: Cross multiply
353.10x = 529.63 × 121.99 - Step 4: Simplify right side
353.10x = 64,609.56 - Step 5: Solve for x
x = 64,609.56/353.10 - Step 6: Final answer
x = 182.98
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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.