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Finding the Fourth Proportional to 262,383.50, 393,325.79 and 102,561.86

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Solution

The fourth proportional to 262,383.50, 393,325.79 and 102,561.86 is: 153,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,383.50 : 393,325.79 = 102,561.86 : x
  2. Step 2: Convert to fraction form
    262,383.50/393,325.79 = 102,561.86/x
  3. Step 3: Cross multiply
    262,383.50x = 393,325.79 × 102,561.86
  4. Step 4: Simplify right side
    262,383.50x = 40,340,225,078.87
  5. Step 5: Solve for x
    x = 40,340,225,078.87/262,383.50
  6. Step 6: Final answer
    x = 153,745.28

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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.