Home / 381,890.38-527,025.41-212,124.51

Finding the Fourth Proportional to 381,890.38, 527,025.41 and 212,124.51

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Solution

The fourth proportional to 381,890.38, 527,025.41 and 212,124.51 is: 292,741.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,890.38 : 527,025.41 = 212,124.51 : x
  2. Step 2: Convert to fraction form
    381,890.38/527,025.41 = 212,124.51/x
  3. Step 3: Cross multiply
    381,890.38x = 527,025.41 × 212,124.51
  4. Step 4: Simplify right side
    381,890.38x = 111,795,006,853.80
  5. Step 5: Solve for x
    x = 111,795,006,853.80/381,890.38
  6. Step 6: Final answer
    x = 292,741.09

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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.