Finding the Fourth Proportional to 398.97, 550.26 and 293.94
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Solution
The fourth proportional to 398.97, 550.26 and 293.94 is: 405.40
Step by Step Solution
- Step 1: Write the proportion equation
398.97 : 550.26 = 293.94 : x - Step 2: Convert to fraction form
398.97/550.26 = 293.94/x - Step 3: Cross multiply
398.97x = 550.26 × 293.94 - Step 4: Simplify right side
398.97x = 161,743.42 - Step 5: Solve for x
x = 161,743.42/398.97 - Step 6: Final answer
x = 405.40
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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.