Finding the Fourth Proportional to 330.99, 495.87 and 193.65
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Solution
The fourth proportional to 330.99, 495.87 and 193.65 is: 290.12
Step by Step Solution
- Step 1: Write the proportion equation
330.99 : 495.87 = 193.65 : x - Step 2: Convert to fraction form
330.99/495.87 = 193.65/x - Step 3: Cross multiply
330.99x = 495.87 × 193.65 - Step 4: Simplify right side
330.99x = 96,025.23 - Step 5: Solve for x
x = 96,025.23/330.99 - Step 6: Final answer
x = 290.12
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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.