Finding the Fourth Proportional to 258,390.24, 387,584.88 and 68,850.72
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Solution
The fourth proportional to 258,390.24, 387,584.88 and 68,850.72 is: 103,275.95
Step by Step Solution
- Step 1: Write the proportion equation
258,390.24 : 387,584.88 = 68,850.72 : x - Step 2: Convert to fraction form
258,390.24/387,584.88 = 68,850.72/x - Step 3: Cross multiply
258,390.24x = 387,584.88 × 68,850.72 - Step 4: Simplify right side
258,390.24x = 26,685,498,049.11 - Step 5: Solve for x
x = 26,685,498,049.11/258,390.24 - Step 6: Final answer
x = 103,275.95
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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.