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Finding the Fourth Proportional to 139,469.38, 209,202.21 and 34,289.26

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Solution

The fourth proportional to 139,469.38, 209,202.21 and 34,289.26 is: 51,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,469.38 : 209,202.21 = 34,289.26 : x
  2. Step 2: Convert to fraction form
    139,469.38/209,202.21 = 34,289.26/x
  3. Step 3: Cross multiply
    139,469.38x = 209,202.21 × 34,289.26
  4. Step 4: Simplify right side
    139,469.38x = 7,173,388,448.26
  5. Step 5: Solve for x
    x = 7,173,388,448.26/139,469.38
  6. Step 6: Final answer
    x = 51,433.43

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1.5x scale

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.