Finding the Fourth Proportional to 246.35, 339.91 and 157.84
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Solution
The fourth proportional to 246.35, 339.91 and 157.84 is: 217.79
Step by Step Solution
- Step 1: Write the proportion equation
246.35 : 339.91 = 157.84 : x - Step 2: Convert to fraction form
246.35/339.91 = 157.84/x - Step 3: Cross multiply
246.35x = 339.91 × 157.84 - Step 4: Simplify right side
246.35x = 53,652.95 - Step 5: Solve for x
x = 53,652.95/246.35 - Step 6: Final answer
x = 217.79
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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.