Home / 294,621.87-441,958.30-81,389.72

Finding the Fourth Proportional to 294,621.87, 441,958.30 and 81,389.72

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Solution

The fourth proportional to 294,621.87, 441,958.30 and 81,389.72 is: 122,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,621.87 : 441,958.30 = 81,389.72 : x
  2. Step 2: Convert to fraction form
    294,621.87/441,958.30 = 81,389.72/x
  3. Step 3: Cross multiply
    294,621.87x = 441,958.30 × 81,389.72
  4. Step 4: Simplify right side
    294,621.87x = 35,970,863,190.10
  5. Step 5: Solve for x
    x = 35,970,863,190.10/294,621.87
  6. Step 6: Final answer
    x = 122,091.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.