Finding the Fourth Proportional to 408.99, 564.35 and 261.75
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Solution
The fourth proportional to 408.99, 564.35 and 261.75 is: 361.18
Step by Step Solution
- Step 1: Write the proportion equation
408.99 : 564.35 = 261.75 : x - Step 2: Convert to fraction form
408.99/564.35 = 261.75/x - Step 3: Cross multiply
408.99x = 564.35 × 261.75 - Step 4: Simplify right side
408.99x = 147,717.30 - Step 5: Solve for x
x = 147,717.30/408.99 - Step 6: Final answer
x = 361.18
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.