Finding the Fourth Proportional to 398,479.20, 597,718.80 and 177,295.20
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Solution
The fourth proportional to 398,479.20, 597,718.80 and 177,295.20 is: 265,942.80
Step by Step Solution
- Step 1: Write the proportion equation
398,479.20 : 597,718.80 = 177,295.20 : x - Step 2: Convert to fraction form
398,479.20/597,718.80 = 177,295.20/x - Step 3: Cross multiply
398,479.20x = 597,718.80 × 177,295.20 - Step 4: Simplify right side
398,479.20x = 105,972,674,189.76 - Step 5: Solve for x
x = 105,972,674,189.76/398,479.20 - Step 6: Final answer
x = 265,942.80
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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.