Finding the Fourth Proportional to 459.36, 633.51 and 396.99
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Solution
The fourth proportional to 459.36, 633.51 and 396.99 is: 547.49
Step by Step Solution
- Step 1: Write the proportion equation
459.36 : 633.51 = 396.99 : x - Step 2: Convert to fraction form
459.36/633.51 = 396.99/x - Step 3: Cross multiply
459.36x = 633.51 × 396.99 - Step 4: Simplify right side
459.36x = 251,497.13 - Step 5: Solve for x
x = 251,497.13/459.36 - Step 6: Final answer
x = 547.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.