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Finding the Fourth Proportional to 246,735.76, 340,495.50 and 139,306

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Solution

The fourth proportional to 246,735.76, 340,495.50 and 139,306 is: 192,242.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,735.76 : 340,495.50 = 139,306 : x
  2. Step 2: Convert to fraction form
    246,735.76/340,495.50 = 139,306/x
  3. Step 3: Cross multiply
    246,735.76x = 340,495.50 × 139,306
  4. Step 4: Simplify right side
    246,735.76x = 47,433,066,123
  5. Step 5: Solve for x
    x = 47,433,066,123/246,735.76
  6. Step 6: Final answer
    x = 192,242.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.