Finding the Fourth Proportional to 398,701.70, 598,052.55 and 188,749.70
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Solution
The fourth proportional to 398,701.70, 598,052.55 and 188,749.70 is: 283,124.55
Step by Step Solution
- Step 1: Write the proportion equation
398,701.70 : 598,052.55 = 188,749.70 : x - Step 2: Convert to fraction form
398,701.70/598,052.55 = 188,749.70/x - Step 3: Cross multiply
398,701.70x = 598,052.55 × 188,749.70 - Step 4: Simplify right side
398,701.70x = 112,882,239,396.74 - Step 5: Solve for x
x = 112,882,239,396.74/398,701.70 - Step 6: Final answer
x = 283,124.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.