Home / 281,966.15-422,942.20-82,288.27

Finding the Fourth Proportional to 281,966.15, 422,942.20 and 82,288.27

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Solution

The fourth proportional to 281,966.15, 422,942.20 and 82,288.27 is: 123,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,966.15 : 422,942.20 = 82,288.27 : x
  2. Step 2: Convert to fraction form
    281,966.15/422,942.20 = 82,288.27/x
  3. Step 3: Cross multiply
    281,966.15x = 422,942.20 × 82,288.27
  4. Step 4: Simplify right side
    281,966.15x = 34,803,181,007.87
  5. Step 5: Solve for x
    x = 34,803,181,007.87/281,966.15
  6. Step 6: Final answer
    x = 123,430.35

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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.