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Finding the Fourth Proportional to 321,901.92, 482,307.12 and 196,981.92

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Solution

The fourth proportional to 321,901.92, 482,307.12 and 196,981.92 is: 295,138.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,901.92 : 482,307.12 = 196,981.92 : x
  2. Step 2: Convert to fraction form
    321,901.92/482,307.12 = 196,981.92/x
  3. Step 3: Cross multiply
    321,901.92x = 482,307.12 × 196,981.92
  4. Step 4: Simplify right side
    321,901.92x = 95,005,782,527.27
  5. Step 5: Solve for x
    x = 95,005,782,527.27/321,901.92
  6. Step 6: Final answer
    x = 295,138.91

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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.