Finding the Fourth Proportional to 251.44, 346.99 and 139.41
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Solution
The fourth proportional to 251.44, 346.99 and 139.41 is: 192.39
Step by Step Solution
- Step 1: Write the proportion equation
251.44 : 346.99 = 139.41 : x - Step 2: Convert to fraction form
251.44/346.99 = 139.41/x - Step 3: Cross multiply
251.44x = 346.99 × 139.41 - Step 4: Simplify right side
251.44x = 48,373.88 - Step 5: Solve for x
x = 48,373.88/251.44 - Step 6: Final answer
x = 192.39
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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.