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Finding the Fourth Proportional to 321,981.72, 483,054.11 and 227,396.67

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Solution

The fourth proportional to 321,981.72, 483,054.11 and 227,396.67 is: 341,152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,981.72 : 483,054.11 = 227,396.67 : x
  2. Step 2: Convert to fraction form
    321,981.72/483,054.11 = 227,396.67/x
  3. Step 3: Cross multiply
    321,981.72x = 483,054.11 × 227,396.67
  4. Step 4: Simplify right side
    321,981.72x = 109,844,894,906.83
  5. Step 5: Solve for x
    x = 109,844,894,906.83/321,981.72
  6. Step 6: Final answer
    x = 341,152.58

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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.