Finding the Fourth Proportional to 398.97, 598.44 and 125.09
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Solution
The fourth proportional to 398.97, 598.44 and 125.09 is: 187.62
Step by Step Solution
- Step 1: Write the proportion equation
398.97 : 598.44 = 125.09 : x - Step 2: Convert to fraction form
398.97/598.44 = 125.09/x - Step 3: Cross multiply
398.97x = 598.44 × 125.09 - Step 4: Simplify right side
398.97x = 74,855.87 - Step 5: Solve for x
x = 74,855.87/398.97 - Step 6: Final answer
x = 187.62
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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.