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Finding the Fourth Proportional to 230,920.60, 346,380.90 and 221,704.60

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Solution

The fourth proportional to 230,920.60, 346,380.90 and 221,704.60 is: 332,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,920.60 : 346,380.90 = 221,704.60 : x
  2. Step 2: Convert to fraction form
    230,920.60/346,380.90 = 221,704.60/x
  3. Step 3: Cross multiply
    230,920.60x = 346,380.90 × 221,704.60
  4. Step 4: Simplify right side
    230,920.60x = 76,794,238,882.14
  5. Step 5: Solve for x
    x = 76,794,238,882.14/230,920.60
  6. Step 6: Final answer
    x = 332,556.90

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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.