Finding the Fourth Proportional to 391,422.10, 587,246.94 and 163,825.09
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Solution
The fourth proportional to 391,422.10, 587,246.94 and 163,825.09 is: 245,785.26
Step by Step Solution
- Step 1: Write the proportion equation
391,422.10 : 587,246.94 = 163,825.09 : x - Step 2: Convert to fraction form
391,422.10/587,246.94 = 163,825.09/x - Step 3: Cross multiply
391,422.10x = 587,246.94 × 163,825.09 - Step 4: Simplify right side
391,422.10x = 96,205,782,797.72 - Step 5: Solve for x
x = 96,205,782,797.72/391,422.10 - Step 6: Final answer
x = 245,785.26
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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.