Home / 281,585.22-422,379.23-71,223.36

Finding the Fourth Proportional to 281,585.22, 422,379.23 and 71,223.36

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Solution

The fourth proportional to 281,585.22, 422,379.23 and 71,223.36 is: 106,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,585.22 : 422,379.23 = 71,223.36 : x
  2. Step 2: Convert to fraction form
    281,585.22/422,379.23 = 71,223.36/x
  3. Step 3: Cross multiply
    281,585.22x = 422,379.23 × 71,223.36
  4. Step 4: Simplify right side
    281,585.22x = 30,083,267,954.81
  5. Step 5: Solve for x
    x = 30,083,267,954.81/281,585.22
  6. Step 6: Final answer
    x = 106,835.39

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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.