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Finding the Fourth Proportional to 234,128.87, 323,097.84 and 126,698.90

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Solution

The fourth proportional to 234,128.87, 323,097.84 and 126,698.90 is: 174,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,128.87 : 323,097.84 = 126,698.90 : x
  2. Step 2: Convert to fraction form
    234,128.87/323,097.84 = 126,698.90/x
  3. Step 3: Cross multiply
    234,128.87x = 323,097.84 × 126,698.90
  4. Step 4: Simplify right side
    234,128.87x = 40,936,139,304.89
  5. Step 5: Solve for x
    x = 40,936,139,304.89/234,128.87
  6. Step 6: Final answer
    x = 174,844.48

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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.