Finding the Fourth Proportional to 424.40, 636.91 and 241.75
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Solution
The fourth proportional to 424.40, 636.91 and 241.75 is: 362.80
Step by Step Solution
- Step 1: Write the proportion equation
424.40 : 636.91 = 241.75 : x - Step 2: Convert to fraction form
424.40/636.91 = 241.75/x - Step 3: Cross multiply
424.40x = 636.91 × 241.75 - Step 4: Simplify right side
424.40x = 153,972.99 - Step 5: Solve for x
x = 153,972.99/424.40 - Step 6: Final answer
x = 362.80
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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.