Finding the Fourth Proportional to 289.62, 400.08 and 230.99
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Solution
The fourth proportional to 289.62, 400.08 and 230.99 is: 319.08
Step by Step Solution
- Step 1: Write the proportion equation
289.62 : 400.08 = 230.99 : x - Step 2: Convert to fraction form
289.62/400.08 = 230.99/x - Step 3: Cross multiply
289.62x = 400.08 × 230.99 - Step 4: Simplify right side
289.62x = 92,412.48 - Step 5: Solve for x
x = 92,412.48/289.62 - Step 6: Final answer
x = 319.08
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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.