Finding the Fourth Proportional to 506.55, 698.58 and 331.99
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Solution
The fourth proportional to 506.55, 698.58 and 331.99 is: 457.84
Step by Step Solution
- Step 1: Write the proportion equation
506.55 : 698.58 = 331.99 : x - Step 2: Convert to fraction form
506.55/698.58 = 331.99/x - Step 3: Cross multiply
506.55x = 698.58 × 331.99 - Step 4: Simplify right side
506.55x = 231,919.91 - Step 5: Solve for x
x = 231,919.91/506.55 - Step 6: Final answer
x = 457.84
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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.