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Finding the Fourth Proportional to 422,401.56, 633,606.32 and 102,556.27

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Solution

The fourth proportional to 422,401.56, 633,606.32 and 102,556.27 is: 153,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,401.56 : 633,606.32 = 102,556.27 : x
  2. Step 2: Convert to fraction form
    422,401.56/633,606.32 = 102,556.27/x
  3. Step 3: Cross multiply
    422,401.56x = 633,606.32 × 102,556.27
  4. Step 4: Simplify right side
    422,401.56x = 64,980,297,735.11
  5. Step 5: Solve for x
    x = 64,980,297,735.11/422,401.56
  6. Step 6: Final answer
    x = 153,835.37

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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.