Home / 377,865.70-521,451.21-208,096.18

Finding the Fourth Proportional to 377,865.70, 521,451.21 and 208,096.18

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Solution

The fourth proportional to 377,865.70, 521,451.21 and 208,096.18 is: 287,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,865.70 : 521,451.21 = 208,096.18 : x
  2. Step 2: Convert to fraction form
    377,865.70/521,451.21 = 208,096.18/x
  3. Step 3: Cross multiply
    377,865.70x = 521,451.21 × 208,096.18
  4. Step 4: Simplify right side
    377,865.70x = 108,512,004,857.38
  5. Step 5: Solve for x
    x = 108,512,004,857.38/377,865.70
  6. Step 6: Final answer
    x = 287,170.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.