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Finding the Fourth Proportional to 379,951.34, 570,123.41 and 166,869

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Solution

The fourth proportional to 379,951.34, 570,123.41 and 166,869 is: 250,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,951.34 : 570,123.41 = 166,869 : x
  2. Step 2: Convert to fraction form
    379,951.34/570,123.41 = 166,869/x
  3. Step 3: Cross multiply
    379,951.34x = 570,123.41 × 166,869
  4. Step 4: Simplify right side
    379,951.34x = 95,135,922,468.95
  5. Step 5: Solve for x
    x = 95,135,922,468.95/379,951.34
  6. Step 6: Final answer
    x = 250,389.76

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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.