Finding the Fourth Proportional to 383.21, 575.08 and 296.74
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Solution
The fourth proportional to 383.21, 575.08 and 296.74 is: 445.32
Step by Step Solution
- Step 1: Write the proportion equation
383.21 : 575.08 = 296.74 : x - Step 2: Convert to fraction form
383.21/575.08 = 296.74/x - Step 3: Cross multiply
383.21x = 575.08 × 296.74 - Step 4: Simplify right side
383.21x = 170,647.06 - Step 5: Solve for x
x = 170,647.06/383.21 - Step 6: Final answer
x = 445.32
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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.