Finding the Fourth Proportional to 330.99, 496.45 and 135.99
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Solution
The fourth proportional to 330.99, 496.45 and 135.99 is: 203.97
Step by Step Solution
- Step 1: Write the proportion equation
330.99 : 496.45 = 135.99 : x - Step 2: Convert to fraction form
330.99/496.45 = 135.99/x - Step 3: Cross multiply
330.99x = 496.45 × 135.99 - Step 4: Simplify right side
330.99x = 67,512.24 - Step 5: Solve for x
x = 67,512.24/330.99 - Step 6: Final answer
x = 203.97
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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.