Finding the Fourth Proportional to 491.44, 735.44 and 285.70
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Solution
The fourth proportional to 491.44, 735.44 and 285.70 is: 427.55
Step by Step Solution
- Step 1: Write the proportion equation
491.44 : 735.44 = 285.70 : x - Step 2: Convert to fraction form
491.44/735.44 = 285.70/x - Step 3: Cross multiply
491.44x = 735.44 × 285.70 - Step 4: Simplify right side
491.44x = 210,115.21 - Step 5: Solve for x
x = 210,115.21/491.44 - Step 6: Final answer
x = 427.55
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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.