Finding the Fourth Proportional to 330.06, 495.11 and 98.95
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Solution
The fourth proportional to 330.06, 495.11 and 98.95 is: 148.43
Step by Step Solution
- Step 1: Write the proportion equation
330.06 : 495.11 = 98.95 : x - Step 2: Convert to fraction form
330.06/495.11 = 98.95/x - Step 3: Cross multiply
330.06x = 495.11 × 98.95 - Step 4: Simplify right side
330.06x = 48,991.13 - Step 5: Solve for x
x = 48,991.13/330.06 - Step 6: Final answer
x = 148.43
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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.