Finding the Fourth Proportional to 378,074.28, 566,177.68 and 281,780.62
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Solution
The fourth proportional to 378,074.28, 566,177.68 and 281,780.62 is: 421,975.01
Step by Step Solution
- Step 1: Write the proportion equation
378,074.28 : 566,177.68 = 281,780.62 : x - Step 2: Convert to fraction form
378,074.28/566,177.68 = 281,780.62/x - Step 3: Cross multiply
378,074.28x = 566,177.68 × 281,780.62 - Step 4: Simplify right side
378,074.28x = 159,537,897,700.56 - Step 5: Solve for x
x = 159,537,897,700.56/378,074.28 - Step 6: Final answer
x = 421,975.01
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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.