Finding the Fourth Proportional to 378,972.27, 522,978.53 and 209,202.75
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Solution
The fourth proportional to 378,972.27, 522,978.53 and 209,202.75 is: 288,698.02
Step by Step Solution
- Step 1: Write the proportion equation
378,972.27 : 522,978.53 = 209,202.75 : x - Step 2: Convert to fraction form
378,972.27/522,978.53 = 209,202.75/x - Step 3: Cross multiply
378,972.27x = 522,978.53 × 209,202.75 - Step 4: Simplify right side
378,972.27x = 109,408,545,620.94 - Step 5: Solve for x
x = 109,408,545,620.94/378,972.27 - Step 6: Final answer
x = 288,698.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.