Finding the Fourth Proportional to 440.08, 660.08 and 193.28
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Solution
The fourth proportional to 440.08, 660.08 and 193.28 is: 289.90
Step by Step Solution
- Step 1: Write the proportion equation
440.08 : 660.08 = 193.28 : x - Step 2: Convert to fraction form
440.08/660.08 = 193.28/x - Step 3: Cross multiply
440.08x = 660.08 × 193.28 - Step 4: Simplify right side
440.08x = 127,580.26 - Step 5: Solve for x
x = 127,580.26/440.08 - Step 6: Final answer
x = 289.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.