Finding the Fourth Proportional to 378.68, 566.99 and 320.58
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Solution
The fourth proportional to 378.68, 566.99 and 320.58 is: 480.00
Step by Step Solution
- Step 1: Write the proportion equation
378.68 : 566.99 = 320.58 : x - Step 2: Convert to fraction form
378.68/566.99 = 320.58/x - Step 3: Cross multiply
378.68x = 566.99 × 320.58 - Step 4: Simplify right side
378.68x = 181,764.05 - Step 5: Solve for x
x = 181,764.05/378.68 - Step 6: Final answer
x = 480.00
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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.