Finding the Fourth Proportional to 398,512.20, 597,768.30 and 149,161.80
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Solution
The fourth proportional to 398,512.20, 597,768.30 and 149,161.80 is: 223,742.70
Step by Step Solution
- Step 1: Write the proportion equation
398,512.20 : 597,768.30 = 149,161.80 : x - Step 2: Convert to fraction form
398,512.20/597,768.30 = 149,161.80/x - Step 3: Cross multiply
398,512.20x = 597,768.30 × 149,161.80 - Step 4: Simplify right side
398,512.20x = 89,164,195,610.94 - Step 5: Solve for x
x = 89,164,195,610.94/398,512.20 - Step 6: Final answer
x = 223,742.70
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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.