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Finding the Fourth Proportional to 321,983.72, 483,057.11 and 227,398.67

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Solution

The fourth proportional to 321,983.72, 483,057.11 and 227,398.67 is: 341,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,983.72 : 483,057.11 = 227,398.67 : x
  2. Step 2: Convert to fraction form
    321,983.72/483,057.11 = 227,398.67/x
  3. Step 3: Cross multiply
    321,983.72x = 483,057.11 × 227,398.67
  4. Step 4: Simplify right side
    321,983.72x = 109,846,544,348.04
  5. Step 5: Solve for x
    x = 109,846,544,348.04/321,983.72
  6. Step 6: Final answer
    x = 341,155.58

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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.