Finding the Fourth Proportional to 398.70, 597.84 and 124.68
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Solution
The fourth proportional to 398.70, 597.84 and 124.68 is: 186.95
Step by Step Solution
- Step 1: Write the proportion equation
398.70 : 597.84 = 124.68 : x - Step 2: Convert to fraction form
398.70/597.84 = 124.68/x - Step 3: Cross multiply
398.70x = 597.84 × 124.68 - Step 4: Simplify right side
398.70x = 74,538.69 - Step 5: Solve for x
x = 74,538.69/398.70 - Step 6: Final answer
x = 186.95
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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.