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Finding the Fourth Proportional to 377,803.64, 521,392.75 and 208,037.77

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Solution

The fourth proportional to 377,803.64, 521,392.75 and 208,037.77 is: 287,105.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,803.64 : 521,392.75 = 208,037.77 : x
  2. Step 2: Convert to fraction form
    377,803.64/521,392.75 = 208,037.77/x
  3. Step 3: Cross multiply
    377,803.64x = 521,392.75 × 208,037.77
  4. Step 4: Simplify right side
    377,803.64x = 108,469,383,180.59
  5. Step 5: Solve for x
    x = 108,469,383,180.59/377,803.64
  6. Step 6: Final answer
    x = 287,105.18

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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.