Finding the Fourth Proportional to 398,711.57, 597,964.68 and 118,163.21
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Solution
The fourth proportional to 398,711.57, 597,964.68 and 118,163.21 is: 177,214.38
Step by Step Solution
- Step 1: Write the proportion equation
398,711.57 : 597,964.68 = 118,163.21 : x - Step 2: Convert to fraction form
398,711.57/597,964.68 = 118,163.21/x - Step 3: Cross multiply
398,711.57x = 597,964.68 × 118,163.21 - Step 4: Simplify right side
398,711.57x = 70,657,423,065.60 - Step 5: Solve for x
x = 70,657,423,065.60/398,711.57 - Step 6: Final answer
x = 177,214.38
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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.