Finding the Fourth Proportional to 239.63, 330.80 and 169.74
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Solution
The fourth proportional to 239.63, 330.80 and 169.74 is: 234.32
Step by Step Solution
- Step 1: Write the proportion equation
239.63 : 330.80 = 169.74 : x - Step 2: Convert to fraction form
239.63/330.80 = 169.74/x - Step 3: Cross multiply
239.63x = 330.80 × 169.74 - Step 4: Simplify right side
239.63x = 56,149.14 - Step 5: Solve for x
x = 56,149.14/239.63 - Step 6: Final answer
x = 234.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.