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Finding the Fourth Proportional to 381,890.32, 527,025.32 and 212,124.44

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Solution

The fourth proportional to 381,890.32, 527,025.32 and 212,124.44 is: 292,741.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,890.32 : 527,025.32 = 212,124.44 : x
  2. Step 2: Convert to fraction form
    381,890.32/527,025.32 = 212,124.44/x
  3. Step 3: Cross multiply
    381,890.32x = 527,025.32 × 212,124.44
  4. Step 4: Simplify right side
    381,890.32x = 111,794,951,923.23
  5. Step 5: Solve for x
    x = 111,794,951,923.23/381,890.32
  6. Step 6: Final answer
    x = 292,741.00

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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.