Finding the Fourth Proportional to 251.48, 346.99 and 140.94
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Solution
The fourth proportional to 251.48, 346.99 and 140.94 is: 194.47
Step by Step Solution
- Step 1: Write the proportion equation
251.48 : 346.99 = 140.94 : x - Step 2: Convert to fraction form
251.48/346.99 = 140.94/x - Step 3: Cross multiply
251.48x = 346.99 × 140.94 - Step 4: Simplify right side
251.48x = 48,905.08 - Step 5: Solve for x
x = 48,905.08/251.48 - Step 6: Final answer
x = 194.47
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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.