Finding the Fourth Proportional to 289.26, 398.99 and 178.59
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Solution
The fourth proportional to 289.26, 398.99 and 178.59 is: 246.33
Step by Step Solution
- Step 1: Write the proportion equation
289.26 : 398.99 = 178.59 : x - Step 2: Convert to fraction form
289.26/398.99 = 178.59/x - Step 3: Cross multiply
289.26x = 398.99 × 178.59 - Step 4: Simplify right side
289.26x = 71,254.73 - Step 5: Solve for x
x = 71,254.73/289.26 - Step 6: Final answer
x = 246.33
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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.