Finding the Fourth Proportional to 354.41, 489.08 and 197.03
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Solution
The fourth proportional to 354.41, 489.08 and 197.03 is: 271.89
Step by Step Solution
- Step 1: Write the proportion equation
354.41 : 489.08 = 197.03 : x - Step 2: Convert to fraction form
354.41/489.08 = 197.03/x - Step 3: Cross multiply
354.41x = 489.08 × 197.03 - Step 4: Simplify right side
354.41x = 96,360.00 - Step 5: Solve for x
x = 96,360.00/354.41 - Step 6: Final answer
x = 271.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.