Finding the Fourth Proportional to 289.09, 398.75 and 183.99
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Solution
The fourth proportional to 289.09, 398.75 and 183.99 is: 253.78
Step by Step Solution
- Step 1: Write the proportion equation
289.09 : 398.75 = 183.99 : x - Step 2: Convert to fraction form
289.09/398.75 = 183.99/x - Step 3: Cross multiply
289.09x = 398.75 × 183.99 - Step 4: Simplify right side
289.09x = 73,366.01 - Step 5: Solve for x
x = 73,366.01/289.09 - Step 6: Final answer
x = 253.78
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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.