Finding the Fourth Proportional to 317.25, 437.99 and 239.49
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Solution
The fourth proportional to 317.25, 437.99 and 239.49 is: 330.63
Step by Step Solution
- Step 1: Write the proportion equation
317.25 : 437.99 = 239.49 : x - Step 2: Convert to fraction form
317.25/437.99 = 239.49/x - Step 3: Cross multiply
317.25x = 437.99 × 239.49 - Step 4: Simplify right side
317.25x = 104,893.03 - Step 5: Solve for x
x = 104,893.03/317.25 - Step 6: Final answer
x = 330.63
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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.