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Finding the Fourth Proportional to 329,103.73, 493,834.20 and 139,670.65

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Solution

The fourth proportional to 329,103.73, 493,834.20 and 139,670.65 is: 209,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,103.73 : 493,834.20 = 139,670.65 : x
  2. Step 2: Convert to fraction form
    329,103.73/493,834.20 = 139,670.65/x
  3. Step 3: Cross multiply
    329,103.73x = 493,834.20 × 139,670.65
  4. Step 4: Simplify right side
    329,103.73x = 68,974,143,706.23
  5. Step 5: Solve for x
    x = 68,974,143,706.23/329,103.73
  6. Step 6: Final answer
    x = 209,581.77

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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.