Finding the Fourth Proportional to 461.55, 636.99 and 286.92
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Solution
The fourth proportional to 461.55, 636.99 and 286.92 is: 395.98
Step by Step Solution
- Step 1: Write the proportion equation
461.55 : 636.99 = 286.92 : x - Step 2: Convert to fraction form
461.55/636.99 = 286.92/x - Step 3: Cross multiply
461.55x = 636.99 × 286.92 - Step 4: Simplify right side
461.55x = 182,765.17 - Step 5: Solve for x
x = 182,765.17/461.55 - Step 6: Final answer
x = 395.98
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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.