Finding the Fourth Proportional to 326,789.13, 490,603.49 and 251,956.81
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Solution
The fourth proportional to 326,789.13, 490,603.49 and 251,956.81 is: 378,258.88
Step by Step Solution
- Step 1: Write the proportion equation
326,789.13 : 490,603.49 = 251,956.81 : x - Step 2: Convert to fraction form
326,789.13/490,603.49 = 251,956.81/x - Step 3: Cross multiply
326,789.13x = 490,603.49 × 251,956.81 - Step 4: Simplify right side
326,789.13x = 123,610,890,315.27 - Step 5: Solve for x
x = 123,610,890,315.27/326,789.13 - Step 6: Final answer
x = 378,258.88
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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.