Finding the Fourth Proportional to 378,214.20, 566,956.80 and 218,125.80
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Solution
The fourth proportional to 378,214.20, 566,956.80 and 218,125.80 is: 326,978.48
Step by Step Solution
- Step 1: Write the proportion equation
378,214.20 : 566,956.80 = 218,125.80 : x - Step 2: Convert to fraction form
378,214.20/566,956.80 = 218,125.80/x - Step 3: Cross multiply
378,214.20x = 566,956.80 × 218,125.80 - Step 4: Simplify right side
378,214.20x = 123,667,905,565.44 - Step 5: Solve for x
x = 123,667,905,565.44/378,214.20 - Step 6: Final answer
x = 326,978.48
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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.