Finding the Fourth Proportional to 246.14, 339.69 and 157.68
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Solution
The fourth proportional to 246.14, 339.69 and 157.68 is: 217.61
Step by Step Solution
- Step 1: Write the proportion equation
246.14 : 339.69 = 157.68 : x - Step 2: Convert to fraction form
246.14/339.69 = 157.68/x - Step 3: Cross multiply
246.14x = 339.69 × 157.68 - Step 4: Simplify right side
246.14x = 53,562.91 - Step 5: Solve for x
x = 53,562.91/246.14 - Step 6: Final answer
x = 217.61
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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.