Home / 281,729.10-422,556.66-139,519.02

Finding the Fourth Proportional to 281,729.10, 422,556.66 and 139,519.02

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Solution

The fourth proportional to 281,729.10, 422,556.66 and 139,519.02 is: 209,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,729.10 : 422,556.66 = 139,519.02 : x
  2. Step 2: Convert to fraction form
    281,729.10/422,556.66 = 139,519.02/x
  3. Step 3: Cross multiply
    281,729.10x = 422,556.66 × 139,519.02
  4. Step 4: Simplify right side
    281,729.10x = 58,954,691,097.67
  5. Step 5: Solve for x
    x = 58,954,691,097.67/281,729.10
  6. Step 6: Final answer
    x = 209,260.21

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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.