Finding the Fourth Proportional to 325,785.28, 489,215.36 and 219,849.84
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Solution
The fourth proportional to 325,785.28, 489,215.36 and 219,849.84 is: 330,137.44
Step by Step Solution
- Step 1: Write the proportion equation
325,785.28 : 489,215.36 = 219,849.84 : x - Step 2: Convert to fraction form
325,785.28/489,215.36 = 219,849.84/x - Step 3: Cross multiply
325,785.28x = 489,215.36 × 219,849.84 - Step 4: Simplify right side
325,785.28x = 107,553,918,621.54 - Step 5: Solve for x
x = 107,553,918,621.54/325,785.28 - Step 6: Final answer
x = 330,137.44
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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.