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Finding the Fourth Proportional to 381,792.87, 526,859.72 and 212,037.93

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Solution

The fourth proportional to 381,792.87, 526,859.72 and 212,037.93 is: 292,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,792.87 : 526,859.72 = 212,037.93 : x
  2. Step 2: Convert to fraction form
    381,792.87/526,859.72 = 212,037.93/x
  3. Step 3: Cross multiply
    381,792.87x = 526,859.72 × 212,037.93
  4. Step 4: Simplify right side
    381,792.87x = 111,714,244,429.18
  5. Step 5: Solve for x
    x = 111,714,244,429.18/381,792.87
  6. Step 6: Final answer
    x = 292,604.32

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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.