Finding the Fourth Proportional to 264.59, 396.91 and 81.99
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Solution
The fourth proportional to 264.59, 396.91 and 81.99 is: 122.99
Step by Step Solution
- Step 1: Write the proportion equation
264.59 : 396.91 = 81.99 : x - Step 2: Convert to fraction form
264.59/396.91 = 81.99/x - Step 3: Cross multiply
264.59x = 396.91 × 81.99 - Step 4: Simplify right side
264.59x = 32,542.65 - Step 5: Solve for x
x = 32,542.65/264.59 - Step 6: Final answer
x = 122.99
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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.