Finding the Fourth Proportional to 398.97, 597.99 and 261.99
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Solution
The fourth proportional to 398.97, 597.99 and 261.99 is: 392.68
Step by Step Solution
- Step 1: Write the proportion equation
398.97 : 597.99 = 261.99 : x - Step 2: Convert to fraction form
398.97/597.99 = 261.99/x - Step 3: Cross multiply
398.97x = 597.99 × 261.99 - Step 4: Simplify right side
398.97x = 156,667.40 - Step 5: Solve for x
x = 156,667.40/398.97 - Step 6: Final answer
x = 392.68
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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.