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Finding the Fourth Proportional to 351,676.60, 485,313.06 and 190,535.65

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Solution

The fourth proportional to 351,676.60, 485,313.06 and 190,535.65 is: 262,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,676.60 : 485,313.06 = 190,535.65 : x
  2. Step 2: Convert to fraction form
    351,676.60/485,313.06 = 190,535.65/x
  3. Step 3: Cross multiply
    351,676.60x = 485,313.06 × 190,535.65
  4. Step 4: Simplify right side
    351,676.60x = 92,469,439,340.59
  5. Step 5: Solve for x
    x = 92,469,439,340.59/351,676.60
  6. Step 6: Final answer
    x = 262,938.85

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1.5x scale

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.