Finding the Fourth Proportional to 408.99, 564.34 and 261.68
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Solution
The fourth proportional to 408.99, 564.34 and 261.68 is: 361.07
Step by Step Solution
- Step 1: Write the proportion equation
408.99 : 564.34 = 261.68 : x - Step 2: Convert to fraction form
408.99/564.34 = 261.68/x - Step 3: Cross multiply
408.99x = 564.34 × 261.68 - Step 4: Simplify right side
408.99x = 147,673.02 - Step 5: Solve for x
x = 147,673.02/408.99 - Step 6: Final answer
x = 361.07
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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.