Home / 381,272.24-526,155.90-211,506.50

Finding the Fourth Proportional to 381,272.24, 526,155.90 and 211,506.50

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Solution

The fourth proportional to 381,272.24, 526,155.90 and 211,506.50 is: 291,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,272.24 : 526,155.90 = 211,506.50 : x
  2. Step 2: Convert to fraction form
    381,272.24/526,155.90 = 211,506.50/x
  3. Step 3: Cross multiply
    381,272.24x = 526,155.90 × 211,506.50
  4. Step 4: Simplify right side
    381,272.24x = 111,285,392,863.35
  5. Step 5: Solve for x
    x = 111,285,392,863.35/381,272.24
  6. Step 6: Final answer
    x = 291,879.09

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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.