Finding the Fourth Proportional to 272,135.05, 408,149.26 and 258,632.75
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Solution
The fourth proportional to 272,135.05, 408,149.26 and 258,632.75 is: 387,898.46
Step by Step Solution
- Step 1: Write the proportion equation
272,135.05 : 408,149.26 = 258,632.75 : x - Step 2: Convert to fraction form
272,135.05/408,149.26 = 258,632.75/x - Step 3: Cross multiply
272,135.05x = 408,149.26 × 258,632.75 - Step 4: Simplify right side
272,135.05x = 105,560,765,898.06 - Step 5: Solve for x
x = 105,560,765,898.06/272,135.05 - Step 6: Final answer
x = 387,898.46
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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.