Finding the Fourth Proportional to 330.14, 494.93 and 137.63
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Solution
The fourth proportional to 330.14, 494.93 and 137.63 is: 206.32
Step by Step Solution
- Step 1: Write the proportion equation
330.14 : 494.93 = 137.63 : x - Step 2: Convert to fraction form
330.14/494.93 = 137.63/x - Step 3: Cross multiply
330.14x = 494.93 × 137.63 - Step 4: Simplify right side
330.14x = 68,114.05 - Step 5: Solve for x
x = 68,114.05/330.14 - Step 6: Final answer
x = 206.32
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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.