Finding the Fourth Proportional to 280,291.86, 420,187.74 and 102,757.42
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Solution
The fourth proportional to 280,291.86, 420,187.74 and 102,757.42 is: 154,044.46
Step by Step Solution
- Step 1: Write the proportion equation
280,291.86 : 420,187.74 = 102,757.42 : x - Step 2: Convert to fraction form
280,291.86/420,187.74 = 102,757.42/x - Step 3: Cross multiply
280,291.86x = 420,187.74 × 102,757.42 - Step 4: Simplify right side
280,291.86x = 43,177,408,078.03 - Step 5: Solve for x
x = 43,177,408,078.03/280,291.86 - Step 6: Final answer
x = 154,044.46
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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.