Finding the Fourth Proportional to 246.21, 339.78 and 135.69
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Solution
The fourth proportional to 246.21, 339.78 and 135.69 is: 187.26
Step by Step Solution
- Step 1: Write the proportion equation
246.21 : 339.78 = 135.69 : x - Step 2: Convert to fraction form
246.21/339.78 = 135.69/x - Step 3: Cross multiply
246.21x = 339.78 × 135.69 - Step 4: Simplify right side
246.21x = 46,104.24 - Step 5: Solve for x
x = 46,104.24/246.21 - Step 6: Final answer
x = 187.26
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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.