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Finding the Fourth Proportional to 234,358.62, 323,414.77 and 126,928.65

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Solution

The fourth proportional to 234,358.62, 323,414.77 and 126,928.65 is: 175,161.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,358.62 : 323,414.77 = 126,928.65 : x
  2. Step 2: Convert to fraction form
    234,358.62/323,414.77 = 126,928.65/x
  3. Step 3: Cross multiply
    234,358.62x = 323,414.77 × 126,928.65
  4. Step 4: Simplify right side
    234,358.62x = 41,050,600,146.16
  5. Step 5: Solve for x
    x = 41,050,600,146.16/234,358.62
  6. Step 6: Final answer
    x = 175,161.47

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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.