Finding the Fourth Proportional to 375.99, 564.21 and 213.81
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Solution
The fourth proportional to 375.99, 564.21 and 213.81 is: 320.84
Step by Step Solution
- Step 1: Write the proportion equation
375.99 : 564.21 = 213.81 : x - Step 2: Convert to fraction form
375.99/564.21 = 213.81/x - Step 3: Cross multiply
375.99x = 564.21 × 213.81 - Step 4: Simplify right side
375.99x = 120,633.74 - Step 5: Solve for x
x = 120,633.74/375.99 - Step 6: Final answer
x = 320.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.