Finding the Fourth Proportional to 246.13, 339.65 and 142.63
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Solution
The fourth proportional to 246.13, 339.65 and 142.63 is: 196.82
Step by Step Solution
- Step 1: Write the proportion equation
246.13 : 339.65 = 142.63 : x - Step 2: Convert to fraction form
246.13/339.65 = 142.63/x - Step 3: Cross multiply
246.13x = 339.65 × 142.63 - Step 4: Simplify right side
246.13x = 48,442.94 - Step 5: Solve for x
x = 48,442.94/246.13 - Step 6: Final answer
x = 196.82
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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.