Finding the Fourth Proportional to 246.25, 339.84 and 135.74
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Solution
The fourth proportional to 246.25, 339.84 and 135.74 is: 187.32
Step by Step Solution
- Step 1: Write the proportion equation
246.25 : 339.84 = 135.74 : x - Step 2: Convert to fraction form
246.25/339.84 = 135.74/x - Step 3: Cross multiply
246.25x = 339.84 × 135.74 - Step 4: Simplify right side
246.25x = 46,129.03 - Step 5: Solve for x
x = 46,129.03/246.25 - Step 6: Final answer
x = 187.32
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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.