Finding the Fourth Proportional to 424.62, 636.93 and 136.26
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Solution
The fourth proportional to 424.62, 636.93 and 136.26 is: 204.39
Step by Step Solution
- Step 1: Write the proportion equation
424.62 : 636.93 = 136.26 : x - Step 2: Convert to fraction form
424.62/636.93 = 136.26/x - Step 3: Cross multiply
424.62x = 636.93 × 136.26 - Step 4: Simplify right side
424.62x = 86,788.08 - Step 5: Solve for x
x = 86,788.08/424.62 - Step 6: Final answer
x = 204.39
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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.