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Finding the Fourth Proportional to 234,383.31, 351,469.85 and 139,658.13

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Solution

The fourth proportional to 234,383.31, 351,469.85 and 139,658.13 is: 209,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,383.31 : 351,469.85 = 139,658.13 : x
  2. Step 2: Convert to fraction form
    234,383.31/351,469.85 = 139,658.13/x
  3. Step 3: Cross multiply
    234,383.31x = 351,469.85 × 139,658.13
  4. Step 4: Simplify right side
    234,383.31x = 49,085,621,304.09
  5. Step 5: Solve for x
    x = 49,085,621,304.09/234,383.31
  6. Step 6: Final answer
    x = 209,424.56

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1.5x scale

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.