Finding the Fourth Proportional to 398.57, 549.99 and 232.88
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Solution
The fourth proportional to 398.57, 549.99 and 232.88 is: 321.35
Step by Step Solution
- Step 1: Write the proportion equation
398.57 : 549.99 = 232.88 : x - Step 2: Convert to fraction form
398.57/549.99 = 232.88/x - Step 3: Cross multiply
398.57x = 549.99 × 232.88 - Step 4: Simplify right side
398.57x = 128,078.92 - Step 5: Solve for x
x = 128,078.92/398.57 - Step 6: Final answer
x = 321.35
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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.